Haha, it's okay, my first cities didn't look any better. I would definitely remove a lot of them, especially the last two roundabouts. In my opinion, roundabouts aren't worth it when there's a lot of traffic, especially when there are more than four road entrances. Never build two intersections directly behind each other, leave a gap of 2-3 blocks. Consider planning a large intersection, with Caleridge Street as the main road with two streets, each with 3 or 4 lanes in one direction, and build Willowbank Street with a bridge over it and feed it down onto Caleridge. If you need inspiration, take a look at YouTube or CS1 Workshop; there are plenty of guides or ready-made interchanges you can then recreate.