how do you deal with hopelessness?

hey everyone,

so i am wondering, i am about a year into starting my businesses, i made about $4k. I dont do any advertising, i focus strictly on sales. I am starting an advertising campaign soon that i hope will bring me leads. But as of now i really only have 1 customer, which i am grateful for lol...

i set up appointments to call people and i get good responses, i spent the last two months selling and i opened about $2k in deals, i say opened and not closed for a reason... lol

i'm just confused as to how in the hell i can make working for myself a viable option, i get very close to closing, but no money in the hand, im debating just going back to school and starting over

I usually take action everyday and set up at least one phone call for the next day which generally goes well, no closes, but close...

what would you do in my situation?

Edit:

I just want to add i LOVE business, marketing and sales... they are my passion, and i dont want to give up... but if i gotta do it to move out and move on with my life i guess its what i have to do...