I like to mention a vort I live by and I hope it’ll be uplifting for us.
When Moshe Rabeinu was told by Hashem to take Klal yisroel out of mitzraim He said “Hashem I don’t know if I’m capable of doing this great task” and Hashem told him “you want to know the biggest proof that are indeed capable of this great task? Because I sent you, and I never give someone more than they can handle.
Sometimes we feel we’ve been dealt a realy tough blow, or we have too much on our shoulders and we feel like ” I can’t handle this!” Well understand that although it may be tougher and greater than anything that’s has come our way until this point, the understanding that Hashem who created you and I and who gave you this challenge feels that you are indeed capable of overcoming, and handling this challenge should empower you and make you feel ” If I got it, I can handle it!”
I’ve been through hard times not by choice and this has aleways helped me. I hope it will help you too.
Also, a good excersize is to tell yourself verbaly over and over ” I can do this, I can do this” you’ll see you will start beleiving yourself.
Wishing you all and empowered Shabbos!