Do grades matter THAT much?

So I'm in 9th grade (3rd year highschool) and my fathers confronts me, he said I've been slacking off lately which is true, I used to get the honor student awards last year but this year not so much, but my question is, does it really matter THAT much? I barely even remember what they teach on me lastschooly year.

I'm so pressured about my grades right now lol, I'm sure my grades will be down this quarter which I don't really care about, we all had our up and downs. The thingI'ms worried about is my father reaction.

Any advice and tips would do, thank you all🙏🙏