Having an ultimate goal of stacking 1 BTC is completely arbitrary. If you fall short and only get to 0.91 BTC then would you even notice? Will your life be materially different?
Also, if you're 20 and have 0.1 BTC - it is possible that your stack will give you more purchasing power than a 40 yo with 1 BTC over the course of your respective lifetimes.
As satisfying as it is to reach milestones - it makes more sense to figure out what you want from life, and to use Bitcoin as a means to attaining it.