Alterations
Hem, taper, and take in the waist.
The moves
Hem, taper, and waist are the three alterations that turn "close" into "made for me."
The fixes
hem shorten a cuff, clean and even taper take in a leg, from knee down waist take in the sides, or add darts cuff roll, stitch, or let down
How to start
Hem first — it's the highest-impact, lowest-risk change. Then taper. Waist last, when you trust your hands.