My habit

Toady, I want to share my habits. I have made a habit of weight training since last year. In the first place (Here you can just say "First," which is simpler and sounds more natural), my co-worker asked me to join the club because of the cheaper fee. So, I joined the club without a second thought and planned to use a treadmill at times. After going there, I found out that there were loads of facilities ("equipment" would be a better word here) such as barbell, dumbbell and cable crossover machine. All of them caught my eye and made me want to try them. The point was, people using those facilities looked very professional and had muscle and slim figures. Without hesitation, I got a personal trainer to help me build my body up. Until now, I have already gained some benefits from working out:
(1) First is improving my health. I used to have a respiratory allergy and cramping problems which had haunted me for a long
time. I went to see doctors and got a health check. I also took some medicine, but to no avail. Working out made me go
on a balanced diet, such as eating more protein rather than fat or carbohydrates. I am more concerned about the calories 
of food as well. As a result, it really improves my health .I do not get cramped anymore. It is amazing!
(2) Second, I find a way to relax myself. Everyone has his own stress. Only by finding an outlet and letting my stress out can
I strike a balance between work and life. Working out is a good way. After sweating a lot, I feel light-hearted and can
face upcoming challenges.
(3) Third, I learn how to be persistent. Working out is like learning languages that needs lots of effort, practice and
concentration. To obtain a wonderful figure, I push myself to the limit and completely get into it. I just want to see how
far I can go.
(4) Forth, I make some friends and extend my social circle. I share the common habit with people going to the gym. We
workout together. Sometimes we chitchat together. We also share our lives with each other. It is really good to have
friends with a common interest. The world in the gym is totally different from the one in my workplace.

Even though I usually feel sore all around my body and get hurt when I work out by myself, I see all of these as my footprint on my workout path and feel satisfied. I strongly recommend everyone build his own habit as a secret zone to distract him from real life in the zone. When you get suffered feel down, immerse yourself in your habit which is the perfect antidote in the life.

Are these sentences correct? (1) The behavior he acts to frame his friend is dismal. (2) How dismal the accident was! I couldn’t imagine such a young child being left after his parents both gone! 1) His behavior of framing his friend is/was dismal. 2) How dismal the accident was! I couldn’t imagine such a young child being left with his parents both gone! In the second one, I replaced "after" with "with" because in this case changing the word to "with" gives it the same meaning as "considering". The word "after" just doesn't really work with the grammatical construction of the sentence. If you want to use "after" you would need to change the sentence to be something like, "I couldn't imagine such a young child being left without both his parents after the accident." or "I can't imagine such a young child being left after both his parents died/left."

I would say "I'm just messing with you". This is a very common way to say it in American English, and isn't associated with old people or anything. I slightly disagree with the others saying that nobody understands "sb". I understood it, and to me it just looks like a younger person (not a Russian) wrote it if those abbreviations are used. "I'm just giving you a hard time" is also common, as another person mentioned. The other examples you listed at the end of your question are not very common and would sound strange for a non-native speaker to say.

Sexism from Argentine Football Association

Today, once more I'll speak about an article from BBC news website.

The world cup is going to start soon and it's on everyone lips; minds but it is not the only new which is on everyone's mind. An Argentine journalist showed on twitter one chapter from a manual given by the AFA ( Argentine Football Asocciation ) while he was attending one of their free courses. In the picture it could be read something like "how to stand a chance with a Russian girl".

It was a disgusting document which describes different "tips" to flirt with Russian womens. This is part of the written document. "Normally, Russian women care about the important things but of course you'll also find those who just care about material things, money or whether you're handsome, you name it. But don't worry, there are many beautiful women in Russia and not all are for you. Be selective!"

It is a shame that still in 2018 people with that way of thinking exists. What kind of journalist needs that kind of information to write about sports? The Society of  in most of the countries is still sexist, and they still need a lot of time to heal themselves. I think that the person who wrote that should resign immediately.

What do you think about it? Do you think that there is also sexism in the sports field? Have you ever felt it?
Remember to treat all the people like you would like them to treat you.

Good job!