As long as you're aware of the risks which investments in cryptocurrencies carry with them, and you're ok with the possibility that you might lose those 1000$ it's ok. It will most likely be worth it but there is possibility that you might lose your money. In the end it's a risk and the choice and the consequences of the choice (good or bad) are yours alone.

i would suggest bitcoin is at all time peak so better wait for the better price and then buy i would also suggest to check other alt coins at less price to buy and hold

Actually I was thinking about it last time when Bitcoin was $2,000 plus but that moment I never thought it will bubble up to $11,000 today so I regret. I suppose doing it while the iron is hot.

Would strongly advise against that.
Bitcoin still is a risky business, so the money you put in it should be money that you can afford to lose.
Right now we see some major fluctuations.
And because of the speed we see that happening at the moment, I suppose even the traders are uncertain if bitcoin can hold the present price level.
Money you got from a loan, you have to pay back at some point. It would be unfortunate when that point comes exactly at the moment where bitcoin is in a set back phase.

I couldn't agree with this more. There is a common saying that I'm sure we've all heard but it couldn't be more true, especially in this situation: Only invest what you can afford to lose.

I would suggest if you are wanting to get into the market, either do it with a lower amount that you can afford or (as has been suggested) wait and save up until you have what you think is a suitable amount and then invest.

If there is one that you can rely on in crypto investing/trading it's that there will always be another pump and another dump. The market is highly volatile and highly influenced by major players who make the market hard to predict for us average investors.