You're 20 years old and currently married to your first true love? I love to hear those stories that work out, but honestly, the odds were against you from the start.
I strongly agree that it's best to decide together -with or without council- if you're both willing to make the effort and compromises WHILE you can still be civil. If you both agree that it just isn't working out and can part ways amicably, that would be a good thing.
But as the first response said: This is really a matter for your two heads and hearts
Sorry to hear about anyone going through this - it sucks not matter how you look at it
You Will get through and recover either way though!