I was able to play fine yesterday, the only changes I have made are an additional mod, but the same problem occurs without mods.
When I hit "play" on the launcher, it takes me to a black screen which eventually stops responding and I close out of. My computer still acts like minecraft is running though, and I can't close it without restarting my PC. I tried looking for the javaw processes in task manager but they don't show up. It doesn't create any crash logs. I have uninstalled and reinstalled both minecraft and forge several times, as well as java. I am able to run vanilla minecraft without issue.