Am I doing the “fun individual stock allocation” wrong? How do you guys do it?

I'm mostly index funds, but I've decided to allocate 5% of my portfolio to individual stocks.
The “strategy” I've decided to follow is buying a select number of blue chip tech stocks. So far I'm DCA'ing into Apple and Tesla, thinking of MSFT and some others. Reason being I think blue chip tech stocks have more upside but similar downside (well maybe with the exception of Tesla) as non-tech blue chips like Disney or Nike or whatever. I know these companies have huge market caps and have run up a lot, but I think long term they still have a lot of room to grow.
Having said that, obviously I already own a good amount of these stocks in my index funds. So I've begun to question whether I'm doing this wrong and the “fun” allocation to individual stocks need to be geared more towards smaller riskier companies that could moon if I'm lucky.
Wondering what the folks here think.