I think you are lack of plan and goal. For you to secure everything, you need to have a plan, daily, weekly, monthly etc. If your plan didn't work and have a lose of streak continuously, I guess it's the time for you to change your plan or either your strategy. Know when to say enough is enough, take profit and start fresh with a new trade. But, I think your doing good overall. Since, you've said already that your doing averagely, I think it's just a matter of more experiences that you need to have. But, always remember that you need to be patient and think a possible scenario before making decision for you to avoid regretting this to the near future.
I have a friend like this. He knows how much he will invest at what price, he knows what he will do when it drops to a certain price, he knows what to do when it goes up to a certain price. Dude managed to actually make a profit AND still have coins at the same time. This happens when the thing you invest into doubles in profit for example. So you invested 100 dollars to something, and it reached 200 dollars? You take the 100 dollars out, and then the other 100 dollars worth can stay like that forever.
This is just one method, there are so many people who do so many different ways. This is why I believe that there is a good case to be made about crypto and how to plan for your future. I started to learn some stuff from him, not coin related because I like to pick my own coins, but I learned more stuff about how to think for the future and it really helped me a lot.
There are many methods, and you will learn it from time to time,
it's experienced that will guide you in properly assess which strategy is best fit to your personalities,
trading is not a game but a good place where you can change your financial status.
Many successful traders start with nothing but because they are very keen on learning the deeper side of the business.
they managed to succeed and they exceeding to the point that whatever the direction the market is moving they are still compensating.