Some concerns about going to Houston alone…

I'm going to a show at the Bayou Music Center in the theater district by myself in a few months. However, I've never been to a show before, nor have I ever been to the theater district of Houston. In fact, I've only been to Houston a few times in my entire life, so I'm quite nervous about going.

I'm a guy, so it might not be too bad going by myself, but I still have some concerns:

1. Is the area relatively safe to go alone especially at night compared to other areas in Houston?
2. What is the best place to park near that area, and is it worth buying parking online, or should I do it in person?

I know these questions might sound dumb, but I'm quite new to doing these types of activities. Since I recently turned 18, I really want to start going out more and exploring the city, as I come from a rural area.