I started investing w STI-ETF since 2015, $100/mth but recently stopped investing. I've invested in total $7.8k but its current val is at $6092.07.?

You would probably do better by simply getting an index fund through a broker or any robo advisor platforms. I wouldn’t flinch changing from STI to other markets, market here is too small to see any huge profits as a casual retail investor.

I understand your predicament. You're currently at a 21% loss and right now it is more of a psychological game of opportunity cost.

In your shoes, perhaps i would find an exit price in the next 1 year that you're comfortable with. If this is your throwaway cash, great, hold it out!

Time in market is better than timing the market.

-g

Try NASDAQ 100.

If you don't need the money now, I would advise you not to actualize your loss (or if you can afford it, you can even take advantage of the situation that STI is really cheap at the moment right now). ​​​