Oh wow, that’s definitely scary! Honestly, I think most of us have been there at one point in time 
Aww hun, you’re not a stupid newbie! There’s no need for that. You’re just getting started and sometimes we don’t think things such as candles can get out of control. Most of us are used to burning candles regularly and fire itself is hard to tame. It’s okay! The important thing is you’re safe, your house is safe, and nothing got burned down. 
So, here are my tips to not burn your house down with candle magick! 
- don’t over-dress your candle
- always keep an extinguisher handy (or a bowl of water or something to smother the flame with)
- never ever leave candles unattended
- burn your candles on a safe burning surface – I know you said you had it on a glass try. Usually this is okay! I burn my own candles on a glass tray, but they will crack if they get hot enough and it sounds like yours definitely got hot enough.
I also wrote this post (Candle Safety 🔥) in 2019 about candle safety that has a few more tips in there to help you out! I even have a video on my own channel about dressing candles and how to do it semi-safely. Remember, you’re still working with fire so there’s no such thing as a fully safe candle.