Bought stocks on cash app and i have 11.63 dollars from dividends in 2020 and realized capital gains were only 131.52. I fear i will not get any tax docs from them

do not do it your way.  call your broker and find out when they will be sending out the tax forms.  since your dividends were more than $10 the broker is required by law to send you the tax forms. some send them out much later than than 1/31.  by accessing your account you may be able to import the data. 

It is still a little early to rule out getting investment tax forms. As long as you are sure the amounts will match the 1099-DIV, you can file without it. If they don't match, or if something is omitted, you may have to file an amended return. You could call the company and see if they have an online version of the form.