@vincent Urgh. I know the feeling. I started doing 4 days of freelance work with a fixed client in the past couple of years and while it does not give me as much freedom as I would like, regular money in the bank is also an enormous contribution to one’s freedom. (As much as I hate that.)
For the laptop, have you looked into leasing one? I found that to be beneficial in spreading the cost around and have each month something to deduct from VAT, instead of doing the big purchase, spread the deduction it over 3–5 years thing that we need to do here in Germany. It is a little bit more pricy than buying it outright, but I can buy it out at the end of the lease and get a good resale value out of it.
Hope everything works out quickly! Let us know what the best way for support is!