Never regret taking a decision that you thought would make you happy but it didn't. Never blame yourself for things you did that you thought would transform your life but ended in hurt. You should rather be proud that you had the courage to give it a try. Not many of us have that in us. Every experience taught you something valuable. Everything that didn't work out clarified things up. Don't give up hope because they are leading you closer to where you're meant to be. And that's better than you've ever imagined.