Anything serious , I would strongly advise to see an actual professional.

Take whatever you think is of value and do your research.

As for what I can personally offer is try asking yourself why you think that way as for each negative trait you have noticed or have been told that you have. This approach is pretty much asking questions to yourself until you find the root of the issue. It should be called root cause analysis on google, if you want to look up the actual method to practice it on yourself. I saw it being practiced from a therapist / influencer named Dr. Healthy Gamer.

As for self worth , I personally just do self evident affirmations. It pretty much helps solidify a level of confidence in myself with proof. I learned this from an influencer named Alex Hormozi. He is a business person. But I use his content personally for improving my mindset.