It sounds like you have a lot of self doubt and maybe low self esteem.

Do you have a history of people belittling you? Those nagging voices can really get at you.

I'm working on this issue too. When I start to feel like I don't deserve praise, I reprogram my mind to not go down that route: I remind myself of all the amazing things I've done and survived. It helps, and I keep doing it until the feeling subsides. I had to work on building my inner ego strength to work this way. I think you have to meet yourself where you're at, not where you think you should be.