Ive been "caught up in the rhetoric" myself on stocks, but it does make us more savvy...
Dont let your experience deter you from continuing to invest. You are seeing things from a new perspective now, which will be much more profitable in the future, if you let it.
A big loss can be a very profitable lesson. It teaches us to never fall in love with an investment and/or get comfortable... For most investors/traders, stocks are easy to buy and hard to sell. It takes a big loss to understand the importance of selling, even when its for less than your entry. There is always another ticker with equal or better potential.