got this thing that hang u upside down and thought maby ill do some situps how long will it take to see results and jw how many should i do and how long should i do them for. should i take short breaks or just go non stop and repeat

what are ur goals? 6 pack?

a few sets should be all you need.

but if your diet sucks, you'll never have a six pack.

You don't need to hand upside down to do good sit ups. I like to do situps on a decline with a medicine ball. I also go from side to side to help out the obliques.