Levi 19:28 KJV "Ye shall not make any cuttings in your flesh for the dead, nor print any marks upon you: I am the Lord."
When it's declared "I am the Lord",it means a border kept and not to breach it.Jesus when He came in flesh and lived in flesh lead a sinless life and,obeyed all OT commandments.He fulfilled all the Laws of OT,sacrificed His own Life to Redeem us who are unworthy.So when we are called to follow Him,we are commanded with Love to follow Him and become like unto the image of Christ.If tattoos are standing in the way,remove it.And Pray to God to teach you to Love Him even if it takes time.He will answer.Then you will be able to do everything gladly.That's where old people makes mistakes in advising to younger generations.Jesus Loves us,He is not hitler.
Love God first,Obedience to Him will follow.You will never find someone more loving than Jesus.Meditate on the Cross of Christ,from there Holy Spirit will fill you and lead you.Jesus does not live in our comfy zones,and when we are close to Him we enjoy the immense Peace and Calm that world cannot give.The life styles of this world will appear as dung in front of it.Sorry for the harsh word there,but that's the word intended when Apostle spoke of worldly privileges.
"Yea doubtless, and I count all things but loss for the excellency of the knowledge of Christ Jesus my Lord: for whom I have suffered the loss of all things, and do count them but dung, that I may win Christ," Philippians 3: 8 KJV
The main aim is win Christ.Check it how much you want the world then.
Pray to God to fill you with His Love and you will follow Him when that peace begins to overflow from your heart.
God Bless