@Honey-Gumdrops sounds like a CC is broken and blocks you from loading into the game. Try to find exactly what CC is causing that by trying the half and half method: remove half of the CC files, open the game and see if it loads. If it loads, then the broken CC might be in the other half. If it doesn't load, then you should continue on splitting that half into half again, and so on, until finding the culprit.
Don't forget to delete the "localthumbcache" file from Documents>Electronic Arts>The Sims 4 every time you remove or add CC to ensure that the problem is solved.
