$5000 at the end of the week? That's possible but I am not gonna offer you anything. It's basically on how you're quick to complete something. Why not look at the websites like Upwork, fiverr and anything of the same? Those employers or projects that look for results based skill since you're a senior full stack developer. You are for sure aware of deadlines and I think that's your best asset right now but you just need to find the right client that has projects on works so, do your search now with those platforms that I've mentioned and others that has the same freelance market place. Might find one as well on subreddits related to crypto/freelancing.