Guy's gymm ke liye advice chahye

So guys i am from karachi and i am M 18 so i wanna join and introvert qisam ka bnda hu but mujhe poochna yw tha ke mujhe gym join kerna hai normal ho likee acha hoo 😭 means shii ho to mere paas monthly kitne hone chahye gym membership and the diet waigara ke hisaab se mia estimate rkhna chahye