Never limit your prayer just because you think you're sinful or undeserving. You're not praying because of who you are - you're praying because of who He is!
I take EVERYTHING as a sign from God in life. Any small inconvenience. Like maybe I didn't need to go to this place, maybe I don't need this person in my life, that job may not be for me, and maybe this is saving me from something only GOD can see. No loses forever lessons.