I would start with the book tony evens "kingdom Single"
Love yourself, love God and then you will be able to truly love someone without the fear of losing them.
Focus on yourself. focus on your healthy, focus on your career, focus on your spiritual self.
Start a daily journal, writing down how you feel, every day, what you did every day, keep it up.
Start a new hobby, just to pass time.

I pray you are safe and healthy

Perhaps tge book will help..ive never not been with someone . Since my broken heart ive been very tight with the Lord

Don't put too much pressure on yourself. In the reasonable future, you can find someone else, and see if you like her and she meets your needs.

Make sure your “needs” for someone to fill your loneliness does NOT blind you from looking at someone for who they truly are. That feeling of lacking/desperation (scare of being alone) may just be what is attracting those types of “needy” people into your life. You need to be ok with yourself, ok being by yourself, able to enjoy your own company. Its better you don’t go out looking for people when you feel vulnerable, instead, work on yourself. Look back on your past relationship and learn about who you are, what you want/don’t want in your relationship, see whether you are being rational/realistic and heal/nurture yourself from past negative exp/trauma if you have any before moving forward into another relationship. If you don’t feel whole yourself, you can attract those who aren’t.
You should also ask yourself if your sense of loneliness isn’t coming from boredom and if so, there are many ways people entertain themselves such as travel, hobbies, exercise etc.. you should find out what interest you and delve into these. Also you should be aware that just having someone next to you (partner/friend etc..) does not guarantee that you won’t feel lonely. There are many couples out there who are together and yet still feel lonely (grown apart, not communicating, no longer seeing eye to eye etc..) Even if a relationship do start with full of love and understanding, over time both party need to put the effort to make it work in long term so don’t assume once you click with someone it’s going to be easy, smooth sailing all the way to the end. Some say the most issue/trouble a human experience in one’s lifetime is through a relationship (relationship with siblings, parents, friends, neighbours, partner, kids etc… ). Be realistic and clear about what you truly want and if you are willing to pay (putting the effort, willing to accept the consequences) for that.

I never though of starting over again.i never relized being alone and happy is a skill lol. Ive packed on a couple pounds since covid maybe i should get a gym membership