My insights on the subject -
https://www.van-tramp.com/wp/full-time-van-living-on-a-budget/
I survived on about $30 per day for many years and that was with putting $10-15 per day into the fuel tank. $25 per day is very do-able, but extremely tight. Not much can be wasted in fuel or dining out, but you DO NOT have to eat Ramen to do this. I would advise on spending the extra $20 per month to eat proper foods, not garbage. It may cost you an extra few cents, but your health will be worth it.
My tips;
1) Don't drive as much. Cost of fuel is the easiest way to save money. Find a place to camp, and stay the full 14 days. This can easily save $300+ each month
2) Don't pay for camping. Use BLM and National Forest lands. Sounds easy, but remember that all the free camping is normally well outside city limits. See how that effects #1 though?
3) Don't eat out, ever. Cook your own foods and save hundreds each month
4) Invest if inexpensive but wholesome foods. Go back to the basics... such as beans, rice, flour, etc. You have TIME, so make your own foods from scratch using the basic ingredients, saving you a ton on your grocery bill while eating healthier in the process. Fruits and veggies are expensive, and not filling. I hate advising against them though, so grab them only when they are on sale for a good deal. Some also need to be refrigerated... which costs too much money. Even a bag of ice every few days for an ice chest is too much. Consider going to a 100% non-refrigerated food stockpile -
https://www.van-tramp.com/wp/no-refrigeration-foods/
5) Get a hobby (or two, or three) that are nature-oriented that requires no spending (you will need it to stay sane). Hiking is great, photography (you do not need a professional camera), drawing/sketching, reading, blogging, etc. Something that costs nothing but you find joy in. It will keep you from spending money in pursuit of happiness (something all us humans do for some reason)
Good luck!
