Am I eating too much sugar?

I’ve been eating at most 100g natural sugars a day for a while now, so sugar from fruit, veg, dairy etc. I eat a lot of fruits a day, usually get about 7 a day lol but was wondering if this actually bad for me? 100g is a big number. I am trying to gain weight, but will this harm me? I go to the gym every other day and stay active