At the gym...=O

Hi everyone!. Here I am again, and I´m not sure what to talk about... again.
Well, I´ll talk about my experince at the gym. I´ve been gone  going about 5 monts months. It´s a gym near from my house and it is not much expensive. I pay 200 mexican pesos per month. At the beggining beginning, I asked to the trainer (which  this service is free) the exercises that I should do, but after a month I wasn´t very sure about the results combined with the fact that the exercises tha he asked me to do were irregular  strange (not because he would like wanted to have a an assorted routine) they depended of   on his humor  mood. So I asked for help to  from my brother. He told me that it was  would be better that   if (you could also say: he told me I should) I start a progretion routine and focus my heaviest work in legs. (maybe say instead: "do more leg workouts" "focus more on legs in my workouts" 
After his advice I began to go 3 times per week instead (of) every day like I used (to). I have 2 exercises for leg(s) on the 3 days, but on (M)mondays I work (my) chest and arms too, on (W)wendsdays I work (my) back and shoulders, and finally on (F)fridays (my)buttocks. At the beggining   beginning it was really hard and the weight that I carried was light, but after 4 months with the new routine I am carring  lifting 70 kilogramme(s) in my squat exercise, 30 kilogram(s) in my press bench. I´m stronger and thinner (and) I´ve lost 5 kilograms of fat.

I was the kind of person that tought   thought if a girl carries lifts  weight she would convert in a  become the female version of hulk. But I was wrong; it is satisfactory how (much) stronger you can become.

Wow! Writing this was really difficult, I believe because I don´t know too many  much vocabulary in this area

My native language is Spanish if somebody needs help I would like to help . =)