I'm 23 years old I use Minoxidil 5% solution. 1 month after I am not Minoxidil solution my hair is loss fastly increase why.

Minoxidil (5%) is an FDA approved treatment for androgenetic alopecia which I assume is what you have. Some folks see shedding when they start Minoxidil, and also see shedding when they stop. Even with your early shedding, you need to take it for a minimum of 4 months before discontinuing to ascertain for sure if it is not working. Be aware that even though it is applied topically to your scalp, it can have systemic effects (dizziness, low BP, arrhythmias). It may work for many months and then stop working.  If it is working, you will be taking it forever. Your alternative is LLLT.  While a quality laser unit is expensive, over the long run it is the least expensive option. Finally, if neither of these approaches work, you should consider PRP.

Some people report hair loss within the first 3 months of minoxidil use. This will get better and reverse after the first 3 months