Im constantly worried about getting laid off at my small company

Im a junior at a small company (around 30 people) and im constantly worried about getting laid off. I have been with them for 4 months and so far there has been zero signs that im doing poorly or the company is doing poorly. Yet im just always worried about the what if.. If my manager doesnt reply quicky i get worried, anything said in a meeting i overthink and things like that. I cant stop worrying especially since i see layoffs on the internet basically every day now and as a junior, im the target foe most layoffs.

Im diagnosed with OCD btw so...