Hello, Victor! I didn't understand the question too well, because you just wrote one sentence that doesn't say anything, if you really have a question, I'll try to answer it, good luck to you!
1) Her illness was more serious than we at first thought. (serious) 2) Sorry I'm late. It took me longer to get here than I expected. (long) 3) My toothache is more painful than it was yesterday. (painful) 4) She looks about 20, but in fact she's much more than she looks. (old) 5) The problem is not so complicated. It's simplier than you think. (simple) 6) Health and happiness are more important than money. (important) 7) We always go camping when we go on holiday. It's much cheaper than staying in a hotel. (cheap)
Привет, моё имя Виктор, мне 13(Тринадцать) лет.