I need help with how to report self-employed income

I feel like the reporting system is too basic for my situation. I was employed full-time before getting laid off. While I had a full-time job I had two clients on the side to help supplement income.

After getting laid off I started taking on more clients and now I feel so much anxiety every week reporting for a few reasons.

-I am being paid by multiple clients at 3 different rates and there's only one line for income and hours.

-Several clients aren't hourly at all: we agree on a certain amount of work for a certain price so there is no way for me to break down that work to a dollar amount in the weekly claim before I finish it for the month. I’d either end up over-reporting or under-reporting funds, so I've been waiting until I know how many hours I spent to report.

-I do some work for a small nonprofit and sometimes they pay me and sometimes I donate the work depending on what’s in their bank account, so if I reported that work the week of and then it became a month I wasn’t actually paid later on, that’s fraudulent reporting.

I've also added a few services but it's still in the same realm of work so when they ask if it's the same work I always put yes, but should I resubmit it with the added services? They also had me put what hours I work on the original claim but that changes every day.

Is it better to report the week of even if it ends up being wrong or wait until I know how many hours and that I for sure will be paid?

Thank you.