You're probably right; if your resolutions don't do any good or you've never managed to keep them, there's little point in drawing up a new list.
But I hope you won't give up so easily! After all, we usually make resolutions like this because we want our lives to be different - and that can be a good thing, if the changes we want are positive. The alternative is to stay the way we are and decide we'll never change - and that isn't good.
But there's a deeper issue involved here - a spiritual issue. Yes, we want our lives to be different - but so does God! He doesn't want you to be the same person a year from now that you are today. He wants to change you from within, taking away the things that aren't right and filling you with things that are right - things like love and compassion for others, and patience and peace. The Apostle Paul said, "Not that I have... already been made perfect, but I press on to take hold of that for which Christ Jesus took hold of me" (Philippians 3:12).
Make sure of your commitment to Jesus Christ at the beginning of this new year. Then ask Him to help you grow closer to Him in the coming months - and to show you how to do that. Don't be satisfied to be the same person you've always been, but put Christ first in this coming year and learn to walk with Him every day.