I got a strike for NOTHING I did

The enforcement team do not use the forums and since it's for 2 days, it's not eligible for a case review so all you can do is wait it out. LFG posts should essentially be "I'm looking for x amount of people to play this game with" Anything other than that will typically result in a suspension, most likely for spam in your case.

Ok thank you, you actually helped a lot cause I was stuck how to even submit a appeal

You could say it, but you could also get suspended again if you do so I would avoid doing it.

Ohhhh so since it’s just for 2 days it’s not eligible and next time I can’t say “Horror games 14+”?

The email you were sent will tell you why you were suspended/banned or you can look on the enforcement site
here where you can also file for a case review if eligible.