Just go for it! Sometimes you can't validate everything and you just have to jump in and see what happens. If you believe in your idea, others will too!

Build an MVP or even just a mockup. Tools like Figma are great for creating something that looks real but doesn’t take forever to build. Then show it to people who would be your target customers and ask for honest feedback.

I did some validation by creating a minimal viable product (MVP) and getting feedback from my local community. It wasn't perfect but it helped me understand if people would actually use what I was planning to build.

Why even bother if you're not willing to spend? If you can't invest a little money in your idea, how do you expect to get others to invest later?

Run a survey or use tools like Typeform to gather data from your target market. Also, check out Google Trends to see if there's rising interest in the niche you're targeting. You can gather a lot of useful info without spending a ton of cash.

Don't bother. Just invest in Bitcoin or something. Way easier.

I feel you, I'm in the same boat. I started by talking to some friends and family to get their thoughts. Not super scientific but it's a start!

You should def talk to potential customers before doing anything else. Create a simple landing page with your idea, run some ads, and see if people are interested enough to give their email. Also check if there's already a competitor doing something similar - if there is, it means there's at least some market for it. There are books like 'Lean Startup' that can give you more guidance on this.