Question Why does my PC only turn on if I press Enter continuously?

I was using my computer one night and I turned it off. When I tried to turn it back on, my TV (yes, I use a TV as a monitor) marked "No Signal" on the screen as if nothing was plugged in. Then I tried turning it on but pressing the key "ENTER" a lot since I pressed de ON button... And it worked, but now it only turns on completely this way. I want to know what's wrong or how can I fix this issue. Help please, it's the first computer I build. Athlon 200ge, RX 580 gpu, 16gb HyperX memory, Samsung SSD, gigabyte motherboard. Idk if I need to give more detail, I'm new here.