Hi there Mani. I'm in a very similar situation to you, being very new to investing.
Funnily enough, of the two companies I've invested in they are also two of the ones you are invested in as well. I was a little late to the PLS party but I hope there's plenty more growth to come there. As for SYA it's the one I'm hoping will take a similar journey up the charts over the next couple of years.
I'm looking for a couple more lithium stocks to dive into because the more I read about the sector's potential over the next 5 to 10 years the more excited I get.