Too young???

Hi! For starters, I am a chronic overthinker to the MAX. My boyfriend and I have our 3rd anniversary in August, I will be 23 in September and he turned 21 in March. We met as camp counselors, then started dating while at different colleges 11 hours apart, then I spent a semester abroad in a foreign country. We did not live within an hour of each other until a few days before our first anniversary, and now we’ve been living together for almost a year. We’ve been through a lot together, we have two dogs that are basically our children, and we know we want to get married. I have older brothers (8, 10, and 12 year age gap) and they are all married now. I feel like we will hear a lot of “theyre too young!” I do realize we are young, but we know that this what we want. Does anyone else feel pressure from other people about getting engaged at a younger age? I am really excited and don’t really care about the age issue, but I feel like a lot of other people will. Any advice?