The questions "Why me" and "Why not me" are applicable to every sector of life. Regretting not starting an investment with Bitcoin over the past year because you consider your savings wasteful is really unwise to me. Would you have had these thoughts if Bitcoin were not to be as successful as it is today? Did you not also think of it the other way around, like the people who invested in some scam projects and lost all their retirement funds and all their life savings because they made the wrong investment choice? If you were in such a situation, your question could have been, "Why you?"

But if the investment is to be favorable for others, which is not you, your question now will be, "Why not me?"
What I am trying to say in essence is that you don't have to regret any action that you have taken in the past; concentrate on how you can make things work out with the opportunities that you have. Leaving regrets over the past will eventually make you take a harsh decision. 

Since you have decided to start buying and hodling some bitcoins, keep it up. And don't ever regret not buying from the beginning; if everyone bought Bitcoin back then at the very beginning, I don't even think most of us would be able to hold some pieces of it. Everything regarding the journey of Bitcoin contributes to where it is today.