1099/employee question

Good morning!! I just had a question that I really wasn’t sure about and none of my friends know either. My job is a 1099 job meaning I set aside some earnings since taxes aren’t taken out and I am essentially a contractor (medical field) i set my own hours and everything. My paychecks are good, but how would I document my job/earnings when applying for things such as a car loan, home mortgage and etc since I’m not technically “an employee”?