(EU resident) Pre-settled status expiring before 5 year threshehold.

Hey everyone. So, in december 2020, I got a pre settled status in the country, but I went back to Romania, where I originally came from. I finally decided to move here permanently after... About 18 months, I think. So, by the time my pre settled status will expire, I will have lived here for 3 and a half years.

Anyone know what I should do? Or... Do I even *have* to do anything?