That sounds tough. I do think becoming more secure in yourself (like determining what values you stand for, what goals you have outside of love, what makes you unique or happy) will help you be more grounded and not likely to blow away in a gust of (metaphorical) wind when you feel love.
I think it’s good to know what you stand for and also what you want/need in a relationship. It’s easy to get wrapped up in the idea of one, but it also comes with doing certain things like having uncomfortable conversations, setting boundaries and solving conflict together. Knowing who you are first will help you be able to make sure you don’t lose yourself in the relationship.