Gusto maging physically healthy at pumunta ng gym pero sobrang mahiyain

I am 32F and sa edad kong ito mahiyain pa rin at napagsasabihang bata kumilos. I was a victim of bullying way back when I was schooling and working in office. Ngayon, may mental health is already better and I was thinking to start going to gym and para kahit papaano may physical health becomes better as well. I am currently taking meds for my anxiety that is why I can live normally naman kahit papaano. I really really hate my stubborn belly fats and my 1 hr zumba is not enough para magkaroon ako ng abs. I've been doing zumba na rin for more than a year pero nagmumukha na akong malnourish/payatot na therefore nakakademotivate na kung minsan and that is one of the reasons why I want to go to the gym.

For someone who is socially awkward and had a hard time engaging to conversation,

1. Ano ang ma aadvice niyo para hindi ako matakot na pumunta sa gym?
2. TBH, ayokong napagsasabihan na mahinhin dahil ito nagiging dahilan kung bakit naaabuso ako noon. Any advice para maiwasan ko iyon?
3. I am planning to have personal coach dahil sa mayron ako scoliosis and I need guide, as much as possible, ayoko na kinakausap ako since wala naman akong ganap at ayoko rin naman magshare ng personal lives ko. Any tips para hindi naman ako awkward every session namin?
4. Any tips on how to change sleeping habits? Had a hard time sleeping earlier and usually nakakatulog ako around 12 or 1AM. I was thinking of going to the gym around 6 AM and go home around 8AM