Just because you divorce, your wife doesn't mean you divorce your kids.

This is really above the paygrade of randos on the internet, but if you're looking for internet rando advice start with what you said here:

when I was worth being attracted to even.

We don't know exactly what you're lacking now that you had then, but you clearly have a good idea. Make the changes you are capable of in yourself first. I'm not talking about suddenly looking like a movie star. Thats unrealistic even for the best of us. What I mean is: be worth it in your deeds an actions.

• Set a goal for yourself
• Map out a plan of steps you need to accomplish your goal
• Execute the plan

Notes:

• Start with a small goal to get the pattern down and prove to yourself you can do it (you can!). It may be as small as goal of cleaning up your desk and organizing it. Do the 3 steps. Then set another goal. Rinse. Repeat.
• Don't tell people you're setting these goals and doing this work. Just do it for yourself. Your results will speak for themselves. Its been shown that if you tell others your goals, you frequently don't follow through. I experience this myself firsthand.

Be the person you know you can be that is worth being attracted to. I know you can do this!