Self-Worth

Torah Sources

"אבל באמת כל אחד מישראל הוא מדוגל בדבר אחד על כל ישראל ובדבר זה הוא בבחינת מלך על ישראל" [פרי צדיק פר' שקלים אות ד]
See Mekoros Zimmerman p. 19
See Sichos Mussar (Rav Chaim Shmulevitz) Maamor 28 - נכבדות and 55. Zichon Eliyahu (Bloch) p. 322. See Battle of the Generation Ch. 24 how to balance this with humility.
See פרקים במשנת החסידות (כשר) עמ' מא-מב

Disclaimer - the following is my opinion, definitely da'as Torah. Feel free to vehemently disagree. If learning mussar causes you to have a lack of self worth, stop learning it chaver. Or get a rebbi who teaches you how to learn it without bashing yourself. In this parsha, one of the most important things is to have a very healthy sense of self worth. Don't do anything that compromises it. #HashemHelpMe^[1]
Maybe also write down 5 nice things you do each day. It is important to view yourself as a good productive person (who happens to have a habit...) #HashemHelpMe
You got this! Please look at yourself as a whole, and not just at this struggle you have. You're not just a guy who struggles with this. You're a ben-torah, a rebbe, a holy Jew, and a fantastic, growth-oriented person who happens to be struggling with this. @AnsheiZusha
I think strategy number one for you is to once a day stand in front of a mirror, focus deeply on the eyes looking back at you, and tell that fellow in the mirror' "Hey, you are a really great fellow! You daven, you learn, you do many mitzvos, and you have the courage to deal with a tough challenge that most guys have but unfortunately can't face. Hashem will help you win. Stop defining yourself as a rasha and loser. You started this habit way back; without the knowledge of how bad it is. Have a great day!" Do this until you start believing it - it is the truth buddy. #HashemHelpMe^[2]