Your investment goals are the goals that require the longest time frame.
Long time frames allow you to see the benefits of exponential growth.
If you invest $100 per month with a return of 10% then after 1 year you will have $1256.57. That is $56 and 57 cents in interest you made.
If you invest $100 per month with a return of 10% then after 10 years you will have $20,484.50. That is $8,484.50 in interest you made.
If you invest $100 per month with a return of 10% then after 25 years you will have $132,683.34. That is $102,683.34 in interest you made.
To get these benefits you need to have a goal with a long time frame.