The first years of saving look embarrassing. The later years look like magic. Same habit, more time.

Accumulation is slow at first and then steadily less slow, which means the early phase returns almost nothing for real effort. That mismatch is why most people quit in the first stretch, since the amounts look too small to justify the discipline and nothing visible is building. The habit is identical throughout, only the time behind it differs.

Automate the amount so the decision stops being made weekly. Set it low enough to survive a bad month. Then leave it alone and let the boring part run for years.