Self employment, taxes, unemployment, covid19, and offset took my return been a rough few months.. ??? Any advice

How can I prove I get paid for like babysitting and or sitting with an elderly woman for months now but of course I don't receive stubs? Is it almost like trying to prove you do "Gig jobs" for a living... If nothing is happening then of course I'm not contacted to perform income earning services the local few have been used to me doing on a daily basis jus to help people out ya know. But I couldn't try to apply for assistance or unemployment because I am no longer working steadily correct? As u can see I haven't filed taxes and am usually a dependent on my significant other tax form