Don’t be modest — but do be honest!
Even if your goal is marriage, or you don’t want to take your relationships beyond the “it’s just lunch” stage — when you write your personal description, and don’t think that that is the place to be modest. Indeed, this will be your time to let your light shine — if you have reached certain life goals, or have noteworthy achievements — your biography or description is the place to talk about them! Don’t be modest when you construct your personal profile — but to be honest, as liars are inevitably discovered, and they always end up being the losers in the game of love.