I also do the same thing as you, every month I will set aside a little money to invest in 3 coins that I feel have a higher value in the future. Just wait for the next five years and I will benefit like a snowball.
Your strategy is kinda great, little by little you can start booming your investment without feeling/ less impact to your life.
Like you I want to do it also because my money from the salary I received only goes for nothing. So keeping some money to invest in crypto is the best thing that I can do to have investment with no regrets.
Bitcoin is the most promising investment because it really give us our money in higher price we buy it.