I'm not too familiar with Rakuten layout so I'm guessing your portfolio is around RM3,553 correct?

If this is true, I believe there are several ways you can improve your investment technique.

1. Conduct transactions only if transaction value is above >RM8,000.
Each buy and sell already incur cost. Not mistaken, Rakuten charges RM7 for below RM1,000.
If you buy and sell, you already incur (RM7+RM7)/RM1,000 x 100% = 1.4%. This means you lost 1.4% already even before you made a profit.
It's better if you put this money in f.d. instead.
Instead, if you transact >RM8,000. Your cost per transaction is (RM9+RM9)/RM8000 x 100% = 0.23%. This is reasonable.

2. Reduce the counters you hold or diversify using ETF.
Yes, diversification is important BUT! You have too many counters in your portfolio. You need to spend time reading all the quarterly and annual reports to properly make decisions.
If you have a full time job, it is better you reduce the number of different companies you hold or use an ETF instead.

3. Set a cut loss.
You did not cut loss on certain stocks causing you to lose a large %.

Final Recommendation
Buy an ETF/mutual fund instead and focus on your career.

Based on this 2 reason, I suggest you stick to an ETF with low fees.
It provides you diversification and allows you to focus on your career.
A RM1000 increase in your monthly pay is more than what your RM4000 invested can return to you.
Eventually you will have to sell.
If I were you, I will keep the REITs and Sunway, sell AirAsia and Airport. Others cannot really comment.
Put the remaining money into ETF.
Individual stocks is not meant for retirement because it has no diversification.

Hi guys,

My mother has a RHB unit trust fund, previously the fund is managed by OSK, long time ago.

Is it possible to sell it online or must go to RHB investment branch to sell?

I will sell once I fund the fund underperforming relative to it's peers.