Second time launch, let's see how it goes on next week

Hi Everyone,
I have learned from my last launch, that I have to solve a real problem, so for second product I started to solve my problem on the first case, I’m building a platform that allows contractors to share work summaries, submit jobs, and generate invoices, all of which can be shared with clients through a simple link, no client login required.
Any suggestion, also I would appreciated to share with me what you have learned from your launches.
Thanks in advance,
Leo