How to make the most money in the next 4 months in Houston?

So I’ll be leaving houston in 4 months and Before I leave I’d like to have some money to take with me and fund the long road trip! I’m curious if anyone knows the best route to go about doing so. Since I’m living in the heart of downtown houston I feel as though there should be some good opportunities to profit this summer. I am currently applying to restaurants as a server so I can work inside as I already walk dogs on weekdays from 8-2. If anyone knows specifically of anyone hiring I am 26 years old, I have years of experience in sales doing in home/ door-to-door and business-to-business. Starting with life insurance when I was 18. I am no stranger to physical labor either having spent time as a public adjuster and roofing inspector also starting my own moving company and lawn care company years back after not wanting to work for someone else’s. And of course experience as a server both fast casual and fine dining experience. Open to suggestions and ideas on where to look