One of the mistakes I made when I started investing in crypto was investing in many projects. Immediately I heard something new was coming I would make sure I buy it. Sometimes not because I understand how the project works, it was just a feeling of having so many different coins in my portfolio at the end I lost a lot of money. Most of all those projects were terrible choices. It does not mean I did not make a profit at all from some of them but I lost a lot of money from most of the investments and I could’ve used my money to do a better thing.
Most newbie when it comes to investing believes that investing in a lot of things is a good thing but what they don’t know is that investing in so many things exposes you to a lot of risk, especially in CRYPTO where everything is volatile. The same thing goes for the stock market, investing in a lot of stocks is not the right choice. This can be a bad choice in the long run, people also believe that investing in a lot of ETFs is a great way to invest but most of the ETFs hold almost the same stock so buying a lot of them still exposes you to a lot of risk. 
Do it less
One of the things you have to be careful about is letting the marketing team deceive you into buying their project. The marketing team will promise you that they are the next big thing and if you’re not careful you’ll fall for it. Most of all this project is just a dip hole where we keep dumping money without seeing any results. The best thing you can do for yourself is to understand how Investment works and the necessary things a project has before you invest in it because this doesn’t stop you from investing in a new project, but you have to have a strategy and a plan.
Having a strategy and a plan you follow when you are trying to invest in a project will save you a lot of money. If any project you are trying to invest in does not follow your plan or strategy you know you are likely going to lose a lot of money, so this makes it easier for you to know what to invest in. if you don’t have a strategy and a plan on why you should invest in any project you will always fall into the hands of marketer which is to buy things based on promises and excitement.
Be careful
People invest for many reasons, we have those who invest based on the promises of the marketer and after it goes wrong they begin to have disbelief in Investment but they are the ones who invest for the wrong reasons. Invest for the right reasons, not on promises from some people. You must have a strategy and a plan, and understand why you should invest in any project will save you a lot of money. You have to be careful even experienced traders make this mistake believing that investing in more projects is the way to go but investing more also means you have to take more risk. You indeed have to diversify your approach to your portfolio, but diversification doesn’t mean you should invest in 10 to 15 different things. You have to keep it simple so that it will also be easy for you to manage.
Thanks for your time.