Based on what you've shared you now need to apply your 2nd FLR for the final 30 months before ILR
You may apply for the 2nd FLR(M) shortly before reaching your 30 month anniversary living in UK.
Here's a form:-
https://www.gov.uk/government/upload...M__11-2016.pdf
I'm guessing you're on a 5 year route to settlement ?