1. I think this is a normal growth of bitcoin, so no bubble
2. if you want to invest for long-term, yes buy bitcoins now. If for short time, try to wait for a correction.
this is just my opinion based on nothing

1 - I do agree with that.
2 - I do agree with the long term part, but short term wise the market can literally go into any direction.
If you wait for a correction, you risk missing out on a profitable entry point. Remember the time the price nearly reached the $2000 level for the first time? People were advicing others to wait for a correction, where after the the price kept going up and peaked at +$2700. In a situation as this, I would use 25% of the funds to buy Bitcoin at current levels, and leave the rest aside for when the price happens to correct. If the price goes up, you'll have some coins to benefit from the increase, and in case the price goes down, you'll benefit from buying at lower levels. It's basically a win win situation.