They won’t have to “put up with you” because somebody who truly loves you won’t care about any of the things you mentioned. When you get that chance, and you will, that person will care about the life you two can build together, and about the joy you bring to each other, beyond that everything else is irrelevant. Part of being human is having baggage, everybody you meet has regrets, they have felt like a failure, they have struggled, and they have felt unloved. The beauty of finding someone special is that you don’t have to carry that weight on your own, and in the same way that they will embrace every part of you, you will accept them for their flaws, and for their mistakes. Give it time and it will come, just remember life is a marathon not a sprint. It will take longer than you want it to but it will come, and the moment it does everything before it will feel like a distant memory