Is it possible to forget and move on?

Sorry to hear that you went through all this, but at least you tried to get back together and you won't regret that you didn't try. It's best to spend time with other people like family and other friends, pick up some new hobbies and focus on new projects and other things. Sometimes you have to go through breakups and meeting new people to find your way to the person who is truly right for you, it's better to end things now rather than creating a massive mess and having a head full of regrets afterwards. It is worth trying to get into fitness, as that will help you feel better both mentally and physically, if it is something that is bothering you deeply - seek therapy and if you're ready for it; maybe meet up for closure. Time heals everything and whilst things are hurting now, remember that it is only temporary and that there is a light at the end of the tunnel - I hope things get better for you.