Always be Patience. I am also invest much money on it and still waiting for my profit. Because, there are many times, we see the price btc or alt are very low. But once time, it will back in solid and strong position. So, keep wait and be Patience.
When it comes to regrets then i have missed out on accumulating while its still playing around $200+ as far as i remember which it is really just a waste of opportunity for me to accumulate into those times and now the price had already risen up that high.
When it comes to short term investment then it would really be depending on your own choice because not all would really be having the same mindset
on buying on the dip.The question is, how you would consider if its already the bottom or dip price?
I agree when it comes to short-term investment our minds really hard to be patient because we already saw big gains from bitcoin and other altcoins. It's hard to know the exact bottom price for any coins any tokens as far as we can, we just do some analysis and learn from the past and hope when we buy we don't regret it later.