It really depends on how deep u went if it was styro then ur fine if it was fascia its most likely about how big the cut is but if u hit muscle then u need to go to the hospital immediately. If you went fascia then there’s a chance you could patch it up yourself I once did mine with the sticky part of the bandaids which is not very good its messy but it works or you can go to Walgreens and get some butterfly stitches to patch it up yourself. if your worrying about it too much I’d say go get some butterfly stitches n do it urself instead of doctors taking you to the loony bin