Good to hear that you are enjoying your forex journey! That is perhaps more important than you might realise at this stage. There will be periods of frustration and despondency along the way as well as the thrills and the exuberations, so maintaining a positive attitude is essential in spite of the inevitable losses - or maybe rather learning to avoid the mistakes that often destroy a positive attitude.
I don’t think that just randomly trying out various strategies that you happen to come across is the most effective way of developing your approach. There are literally thousands of ways to trade a very wide range of instruments - and none of them work all the time.
So the most important factor to start with is actually: YOU!
You are the captain of your ship, and only you. So you need to be very clear about what kind of trader you want to be and in what kind of markets you want to trade. Also, your personal circumstances are going to constrain what you are able to do.
There is no point in just trading a demo with anything and everything you come across. You should be trying to trade it under conditions that are as close to your real situation and objectives as possible. IT is not so much a demo as a simulator of what you will eventually be doing in a live account.
For starters, it is worth evaluating how much time you have available to watch your charts and therefore whether you are likely to be able to intraday trade or whether daily charts would suit your timetable better.
Daytrading is not as easý as it might seem and is extremely demanding. It requires an intense concentration, strict discipline, an ability to trade contra to logic and decisive action. There is little logic behind intraday moves.
Longer term trading will be easier on the nerves but requires a psychology which is not adversely affected by having positions open for long periods, even days/weeks, while you are unable to watch them. It will also usually require more equity and wider stops to allow the move to develop in spite of interim volatility.
Another factor is whether you are happier setting trades on a “set and forget” basis, i.e. let them run to expiry one way or the other and rely on the R:R and success frequency to determine the overall result. Or to manage your trades as they evolve and move stops and targets depending on your ongoing assessment of market movements.
Or, of course, others seek EAs or automated trading programs…
I firmly believe there is truth in the adage that a good trader can make money even with a poor strategy but a poor trader will struggle to succeed even with the best strategy.
So I’d recommend that you concentrate next on systematically defining what kind of trader you are, developing your trading skills such as discipline and patience, risk assessment, equity management, and interpreting/navigating charts - and what are the personal and circumstantial constraints you need to observe.
Having done that, then maybe the next step might be to consider whether you prefer to work mainly with Price Action techniques or indicators, or a mixture of both, and to what extent you want to include fundamental analysis into your trade assessment.
Once you’ve got all that then I think you might just find that you are more than half way to having already developed your own trading strategy!
Edit to add: At the risk of boring you to tears before you’ve got going, another important consideration is whether you intend trading for income, partly or wholly, or to build your savings/equity, etc. This has quite a big impact on what kind of trading will suit your purposes. For example, carrying a position for a few months does not bring in a cash income even if it is winning - unless you close out portions of it along the way. Also, if you have a minus week then you are immediately under pressure to do double the next week, etc. if you have to live on it and pay the mortgage every month.
Trading can be extremely rewarding in many ways but as a full-time job it is really quite boring and stressful - and doesn’t carry a pension at the end of the day unless you have built that in yourself! I would always only recommend people to trade alongside a normal job and never to dump a normal job in search of a dream - a dream that so easily can turn into a total nightmare with little way out.