כ ל הַּג דוֹל מֵחַּבֵרוֹ יִצְרוֹ ג דוֹל הֵ ימֶּ נוּ סוכה נב א The greater the person, the greater is his Yetzer Hara. He was always "in the ring" and this was actually his: חֶּ דְ וַּ ת הַּ חַּ יִים Geshmak in life. His Geshmak in life was his battles, and his Limud HaMussar to the extreme! Keep talking about the Geshmak of meeting your challenges (even though it may not really be so Geshmak, but you "fake it till you make it"). Instead of talking all day about your issues (which makes you sad), you are talking about the Geshmak of trying to overcome them.
The Apter Rebbe Zatzal said that all day long he's fighting with his Yetzer Hara. "I give him a potch, and then he gives me a potch. Then I give him back, and this goes on 1,000 times. The main thing is that I get him last!" And most important! If you think you are weak, then you say: “I'm Davka the toughest!" The main thing is always give yourself a (sometimes fake) Shtempel! "I'm a Gibbor Chayil” (Boaz) or an Eishes Chayil (Rus)!
Sometimes your entire battle is not to be Nis'pael from your sins and your failings and weaknesses. You may need to spend a long time saying to yourself: אוֹנֵס רַּחְמ נ א פַּטְרֵיה ב"ק כח ב “If I can’t, I’m Patur”, and being Dan yourself L'kaf Zechus again and again, and insist you're Gevaldig because כ ל הַּג דוֹל מֵחַּבֵרוֹ יִצְרוֹ ג דוֹל הֵ ימֶּ נוּ סוכה נב א the greater the person, the greater is his Yetzer Hara, or: אֵין א ד ם עוֹמֵד עַּל דִבְרֵי תוֹר ה אֶּל א אִם כֵן נִכְשַּל ב הֶּן גיטין מג א A person cannot truly comprehend Torah unless he has first slipped and messed up.
After you do loads of this, then maybe you can try to tackle your weakness (at least a drop: עַּד מ קוֹם שֶּי דוֹ מַּגַּעַּת as far as you can “reach”). Or, you may need to spend a lifetime only on believing you're Gevaldig even when you aren't. Of course, you need a Rebbe. As long as you try, or try to try, or even just want to try. Nobody knows; even just your tiny Ratzon may be worth everything!
