No display after I tried to prevent monitor from going to sleep (blink mode)

So I was trying to prevent my monitor from going to sleep or bliking. I was surfing the web to find a solution and I saw a post where it said that I could use xset -dpms for it. So I used it and thought it fixed it but when I rebooted my pc i only got blank black screen. I heard my pc that it booted to manjaro but still only black screen. Then i saw that I could go to tty with ctrl+alt+f2 and tried to turn dpms back on with xset +dpms. But... then i got
xset: unable to open display. I get that for everything that I try to run. Any help would be appreciated!