How can I make the most out of a solo road trip across the US without breaking the bank and while maintaining my physical and mental health?

I totally get your concerns about staying within budget and taking care of yourself on a solo road trip across the US - it's a big undertaking, but with some planning, you can have an amazing time without breaking the bank or compromising your health. First, I'd recommend looking into free or low-cost camping options, like national forests or rest stops, to save on accommodation costs. You can also cook your own meals instead of eating out all the time, which will not only save you money but also help you eat healthier.

As for specific routes or stops, I think you should definitely consider the southern route, which takes you through some amazing national parks like the Grand Canyon and Zion. These parks often have affordable admission fees and offer plenty of opportunities for hiking and outdoor activities, which are great for both your physical and mental health. You can also look into visiting some of the smaller towns and cities along the way, which often have a lot of character and charm without the high prices of bigger cities.

To make sure you're getting enough sleep and exercise, I'd suggest trying to establish a routine as much as possible, even on the road. That might mean setting a regular sleep schedule, getting up early to get some hiking or walking in, and taking breaks during the day to stretch your legs and get some fresh air. You can also look into downloading some fitness or meditation apps to help you stay on track and manage any stress or anxiety that might come up during the trip.

Overall, I think the key to making the most of your solo road trip is to be flexible and open to new experiences, while also taking care of yourself and staying within your means. With a budget of $2,000 and a reliable car, you've got a great foundation to work from - just remember to prioritize your health and well-being, and don't be afraid to take breaks or adjust your plans if you need to. Have a safe and amazing trip, and enjoy all the incredible sights and experiences the US has to offer!