For this you might say, "flesh out", but "trash out" wouldn't make any sense in English (except when you take the trash/garbage out). Other good words are "deliberate" (She needs more time to deliberate that idea) or "contemplate" (I'll contemplate this and get back to you).

Doing my best.

When I was a kid, I would really liked surfing.
But I don't couldn't swim and I had feared the sea. All my friends went surfing in the summer, and I would getting along on the beach just watching them they. A better way to say this would be "I would sit/hang out on the beach just watching them" 
I decided to learn how to swimming and surfing. Swimming it was easier because I love water and swimming pools. In 4 months I get was ready to take my first lesson to  in surfing. On the beach, my teacher give gave me the basic of surfing techniques and told me that I need to go into the sea, to try on continue. 
Then I went and I fell, not one time, but millions of times. Still I never gave up. I knew it would be hard, besides, everything it's is hard, in the beginning. I tried again, and again, then finally, I did it.
For this reason, until  even now, I never give up or stopped to doing something because it's hard or I don't know how to do it made. I know that I am capable of learning and do my best.

I hope my corrections make sense! :) 

1. Passion

It is the hardest part, in my opinion. I think there are so few people who know what their passion is. Millions of people through all over the world hate their work, quarrel a lot at home and just don’t know what to do with their life. They can’t find themselves. It is so important to have something which will help you to wake up and get out of bed even on the gloomiest morning.
As for me, I love languages (I know, you guys are always scolding foreign people who use that strong word for almost everything. You say we should use “like”, but I don’t want to. I love languages with all my heart and I want to dedicate all my whole life to it. Can you allow me to use it in this case? ;) ) I am too young to say that it will be my passion for the rest of my life, since I will only be able to say it definitely only after it will passes the test of time, but right now languages are something that make me happier during the day. I read books and watch movies in English and the fact that I can understand almost everything makes me so proud and happy and pushes me to improve my skills further.
I am not that person whose advice you should listen to, but I just want to say one thing. Try everything! Even if you could fail. Yesterday I watched an amazing cartoon, Zootopia and that Shakira song is from that cartoon (strongly recommend to listening to the song and spending 1,5 hours on the cartoon) How can you find your passion in life if you don’t want to try anything new, if you don’t want to change yourself and your lifestyle? Take the Japanese course, start playing basketball, learn how to play the guitar, go to Australia (in case if you don’t live there), try new recipes! Break stereotypes! There are so many fields and spheres to try yourself in and by sitting at  in one place you just lose all these brilliant opportunities.
Without passion you can’t be successful because you will develop only in case if you like what you are doing. I heard some years ago an amazing quote that if you choose the work you truly like, you won’t have to work for even a single day in your life. I can’t remember who said that but it is so true. When you like what you are doing, you don't even notice how the time flies and don’t feel that your work is a duty. You are willing to do some extra work and will definitely achieve success because development in that field is something without which you can’t live.
Do you have a passion in life? If yes, what is it?

I hope my corrections make sense! I agree with you about having passion in everything you do--especially work! Right now my passions are language learning, crafting and creating, and meeting new people.