You can have a profitable strategy but still fail due to basic execution errors like this. Not seeing OP DID actually have a profitable strategy though lol.
Remember, that dip around March-april, that can happen regularly with a stock you choose and may not recover like we saw this year. Everything essentially doubled in price. But I've bought stocks previously where I went down 30% and it never did recover. You mentioned in another comment that you're stubborn with taking losses. Over time you may take some major losses due to it so you should get into habit of having stop losses set.
interesting. But I looked into it and I'm not going in - they are teetering on the precipice of bankruptcy with 8 billion in liabilities. 3 billion in revenue over multiple years through a contract that is not yet signed and with debt coming due/bankruptcy coming on dec 15 doesn't seem like enough. It's also a drop from 4 billion discussed in september. Maybe someone with deeper knowledge can comment on what their margins are, but dropping 25% from their asking price and having to contract with another supplier feels like it leaves narrow room for profit and therefore ability to pay back a monster debt. probably a short term spike from this news, but doesn't seem safe beyond very short term.
I've only quickly looked at this, so if I'm wrong about any of this, please correct me.