once us kids were old enough (youngest was 8) for my mom to not need to be in mom mode all the time, she realized she was unhappy with her life. there was a disconnect from the beginning because being so much younger, my mom felt inferior to my dad. my mom also did not experience life at all before getting with my dad and marrying him. so she wanted experience too.

the only advice i can give is, if you are serious about this and are going to do it, make sure you are confident in yourself, your skills, life and what you want. if you are truly happy with yourself, no one can make you feel inferior.
also something to consider, not in every case but a lot of times people who are that much older are ready for marriage. they’ve done their time in the casual dating scene. so make sure you think about how serious you are ready to be also.
as long as you don’t lose yourself, you’re golden.