I don't think it's all that uncommon to remake, replay ect and if it is compared to other players so what? If you enjoy it that's what matters it's what the game is for.
In the sims I replay certain themes really often and never seem to get bored with them. I get to a certain level on my sims and if they don't have some story not based on gaining skills ect they are basically done as young adults. I don't like aging them (play with aging off) and with kids I have to do everything on my played sims before I will age them up so most kids just linger there while I rotate. I keep thinking I'll get back to them. Really part of it is kids stories aren't that interesting to me.. but it makes it that much harder to move on, because I still have to get the achievement part done before I can finish the story lol (vicious circle). My sims seem to rest and I feel better playing them at some adult stage where I can go in more directions with their story.
I have certain patterns like this in other games and one of them is restarting. I'm usually a hoarder in other games too. I get to a certain level or readiness or achievement then it's done for me. I have to restart.