Ditch regrets, that is your past. Learn from your past, but do not live in the past, so 86 the regrets!
Don't contemplate the future, as it away. Focus on here and now and today. Today is what matters. Do not live in the future OR the past. Live today for today and for yourself. You matter. You are the single most important person in your life and yet you treat yourself like dirt (not just you, all of us treat ourselves as dirt, until we learn better).
When you wake up in the morning be kind to yourself, gently stroke your head and say your thanks out loud, that you are thankful for waking up and say all the things you are thanking for. Then you ask for guidance for that day, what you want that in that day. Might sound silly, but do give it a go!
