No profit in 3rd business year

Due to Covid shutdowns and slowing business I didn't have a profit in my 3rd year in a row. I wasn't able to write off any of my business expenses. Will I be able to carry those expenses over to the next year? I'm not sure if I will have a profit this year due to my debts growing without any relief from my taxes. I don't want to make any more debt and go threw the same situation.