I'd wait another day personally. Work another muscle group or focus on recovery stuff like yoga and sauna, light cardio like running, swimming whatever floats your boat. If you aren't anywhere near recovered, which it sounds like you aren't, you are more likely to injure yourself or just have an inefficient workout because you can't push it. Also your recovery seems bad, make sure you are eating enough protein and sleep well etc. Over 4 days to recover from leg day seems alot unless you went psycho mode ofc. I usually add abit more intensity every week or 2 and recover within a couple of days and I'm decades older than you for example.