I will tell you what I told my stepkids. A tattoo is a commitment. It is not to be taken lightly. Find a design that you think you really want and then think about it for 2 years. If after those 2 years you still want this design on your body...go for it. Oh and while you are waiting for those 2 years to pass, think about if you really want this design on your body when you're 80.
By the way I have 3 tattoos and I'm working through my 2 years for my 4th.