I don't think you're trading or investing. I think you're throwing your hard-earned savings at the market and hoping that it works out. Luckily it's not going that well for you and you're realising that you're making mistakes before you get into something that you can't get back out of.
I think the first step is to decide whether you want to be trading or actively investing or passively investing or none of the above. For most people, I would say go with passive investing. Stick money into a pension pot every month and let the pension company invest it for you - also, have a look on here, I think you'll find loads of great answers about how to maximise that strategy, for example by buying index funds in tax-free accounts etc.
Active investing vs trading is more about the timeframe and both will take up more of your time and attention than the more passive methods. Essentially, trading looks to make money in the short term by buying and selling fluctuations in share price, investing looks to make money by buying a piece of a company for the long term and having a share of its profits. Investopedia has a longer article on it at https://www.investopedia.com/ask/answers/12/difference-investing-trading.asp
After that, you need to decide what your strategy is. Questions that almost every investor or trader can answer include:
What is your risk tolerance level?
Bob Baerker mentioned this above. If the market tanked and half your savings vanished in the space of 2 weeks, could you sleep at night? One of my shares is doing that right now. I recently bought more. But my risk tolerance is very high and there will be experienced investors here reading that and thinking that I'm a nutcase, and they might be right. Your risk tolerance level will tell you if you should be trading or investing and what sort of things you should be investing in. It helps narrow down the things that you should be looking at.
What is your timeframe? How long do you want to hold an individual stock? What do you want to achieve from this?
This will help inform your decision about investing or trading.
The next few questions are starting to get into strategy but you are going to need a strategy. Almost everyone has one even if they don't think they do. Pro investors have written strategies that are analysed to an incredible degree.
What makes you buy a stock?
What makes you sell a stock?
What makes you expand an existing holding?
What makes you partially sell out of an existing holding?
When and how are you going to collect your profits?
When and how are you going to stop your losses?
How are you going to hold your stocks?
Are you going to be trading with options, CFDs, spread-betting, holding the shares? These all have different costs and will require different ways of thinking.
Some other things to start looking at:
Investopedia has some decent beginners articles:
Barclays has a guide on basic fundamental investment strategies:
The Motley Fool isn't even a shadow of what it used to be, but it still has a decent enough guide at https://www.fool.com/investing/how-to-invest/
My recommendation for the moment is to do less trading, do more reading, do more thinking and ask questions on here.
For trading strategies, well, there's a reason most of the answers here are encouraging you not to do that. The only comment I have on them is if someone offers to sell you a trading system, there's a very, very slim chance that it will work for you and that's assuming the vendor is completely above board and genuinely wants you to do well. Treat them the same way as people selling sure-fire horse racing systems; your results will be about the same.