Congrats on your first game :) Construct is a nice tool.
Watch out for high pitched noises and volumes in games. I was playing with headphones and the initial sound (plus the sound effects) pierced my eardrums.
Also the about section is impossible to read, it's such a tiny text that I couldn't read it even by squinting.
I pressed all the buttons on my keyboard and they did nothing. I couldn't figure out how to play.