I need advice sorely...considering throwing away a great marriage
What kind of situation are you in currently?
I wanna be free for fun and dating, but I'm married with kids already
Trust me, you're setting yourself up for failure. The novelty of dating wears off very quickly, which will lead to regret.
I'm sure going to have fun with no strings attached before it's too late.
Your actions will effect more people than just yourself. Have you tried couples therapy? I think if you make an effort you can set aside a date night for your spouse and make it a habit to keep things fun.