Yes you certainly can take many, many ,many, more positions - just like other traders - if you really want to......but it doesn't take long looking around this site to realise that most "other traders" in retail forex also lose all their money!
Your attitude to taking carefully planned trades is absolutely spot on and you need to cherish that criterion as no.1 on your list.
In your early stages, identifying quality trades and, even more importantly, ignoring those "maybe" trades, or those "gut feel, intuitive" trades, is far more important than "how many trades per day?", "how many pips per week?", "how many currency pairs?","what ROI?",etc.
You need to develop a strategy and an approach to your trading that you are confident in, and even feel proud and possessive about. The amount of profit that is rolling in is not important at this stage. Once selective, quality trading becomes second nature then you can start to look at your profits - which I suspect you will find are already accumulating
Your attention to carefully planned trades is a rarity on this site - and that makes you stand out from the crowd....and in retail forex, where most people lose, that is an entirely enviable asset! Well done!