I'm in a similar position as you, or at least I was when I was younger. Ever since I discovered the fetish, I've loved watching women popping balloons on videos, which over time made me get more comfortable with popping them myself because it looked like a lot of fun. Despite that I still get really anxious around balloons when I'm not in "play mode" and don't have earplugs.
I've often wanted to have balloons around my place after I moved on my own, but I'm usually too nervous to keep them around for long. Maybe I've been really unlucky, but I've had a fair few balloons randomly pop after leaving them inflated for a few hours or days. Oddly enough my worst experiences have been with Qualatex and Belbal, which should be some of the safer brands.
I still try to make some decorations sometimes. My favorite is columns, as they're a lot of fun to wrestle with when it's time to clean up. Balloon-flowers can also be really nice if you have somewhere to hang them up. There should be some good tutorials on Youtube to get you started.
Just a few quick tips based on my own limited decoration experience:
I would recommend learning how to quickly make "duplets" and "quads", as it speeds up the tying process, especially if you have an electric pump with two nozzles. This video shows it really well:
https://www.youtube.com/watch?v=xNGzfPi2G-8
If you're making an arch/column, I've found that the best thing to use to keep it together is modelling balloons (rather than string or fishing lines). If you tie them together, then stretch them and wrap them around each "quad", it will pull each section against each other, avoiding gaps between the balloons that you might end up with otherwise.