Making money for driving lessons

Hey all! At the big old age of 27 I’m finally going to start some driving lessons. I’ve been crunching the numbers and at £370 for a block of 10hrs, I’m not giving myself much wiggle room in terms of budget. I work full time currently but having a passive income or side hustle that could help ease the financial side of learning and eventually starting to drive would be incredibly helpful. I’m uk based and not opposed to getting a second job, but that 20% tax would take a good chunk of anything I earn. What’s worked for you? What’s something that I could do in my evenings, possibly at home? I’m not looking to cover the whole cost of lessons as I know it’s unrealistic, but even a few hundred extra a month would be a relief