Absolutely! I have always told people this. If you invest, invest for the long term. Buy and hold. Keep buying if you can. Dollar cost averaging. But hold. Leave the trading to the experts.

I trade sometimes, but my dad is a broker so I have decades of talking to him about it under my belt, as well as welf-study, but even so, I don't do it often, for the exact reasons you mention.

Again, great advice.