Hi, I have a question about geometry dash.I downloaded cheats on this site and I’m worried about my account being banned, tell me, can I get my account banned by playing with cheats?
Welcome to the community. 
As with all trainers, you will only ever be banned if you attempt to use them in multiplayer game modes. These are game modes where there is more than one real-life person playing the game, like co-op.
Trainers are for single-player game modes, like campaigns and offline skirmishes versus bots.
99% of game developers don’t care what you do in single-player. Because you’re not affecting the experience of the game for their other paying customers there.