We really have to plan our investments well, the most important thing is indeed managing finances first. So we can find out the amount we will invest regularly, as well as emergency funds.
The mistake of investors who are just starting to buy Bitcoin is to consider it as savings. So, put all the remaining money to invest in Bitcoin. If finances do not pose problems, as long as the needs are covered. But when you have problems related to something emergency, especially if you don't have insurance. The choice is to sell some Bitcoin to meet the needs. This is what hinders the success of investment in reaching the target.
But still, some people may not mind that. But actually, it is important to pay attention to.