You might be surprised someday, at just how appropriate your confirmation saint is for you. I picked mine on the basis of her ‘pretty name’ (St. Dymphna) at age 13, having no idea just how much work she’d help me with later in life, in so many ways.
You can pray with as many saints as you want. You aren’t tied just to one. I often appeal to Sts. Cecilia, Teresa of Avila, Therese of Liseaux, Christopher, Anthony, Monica, Augustine, Joseph, along with Mary, our Life, our Sweetness and our Hope.
Each saint in Heaven is available for us to pray with each and every day. Don’t limit yourself. You might become closer to one for awhile, or even for the rest of your life. It’s okay.