Im 5’10 and 195. Titan Super Centurion size 40. The straps I know how to tighten those, but not sure on hips or leg openings. The legs seem to ride up alot more then when new. I can get the suit on in 2min easy.
Also sounds like the legs need to be smaller at the bottom.
Find someone good that works on car upholstery or seatbelts and they can stitch it up nice.
Or look up ginny phillips in Maine. she is awesome.