I got my wisdom tooth extracted 4 days ago, I was eating mash potatoes and I think my stitches came out and now it’s bleeding should I be worried?

Post op. Generally speaking, it's important for stitches to remain in place at least the first 3-4 days. It's not uncommon for them to come out prematurely with associated small amounts of bleeding. It is best that you contact your own dentist and ask him/her if he/she thinks you need to be concerned and possibly come in for an evaluation. Unless it continues to bleed I wouldn't be too concerned.
Get checked. If you don't have pain, and the bleeding stop, probably everything is ok, but it doesn't hurt to get checked anyways.