Do you already understand enough crypto investment? I think since you are a newbie, you should focus on learning first. The focus shouldn't for gaining as much as profits. $1000 is too big money to use for your start, just use smaller amount of money. $100 is enough for your early investment, the focus is on the learning. But if you think that you already have enough knowledge and experience, $1000 is no problem to use as your capital.
Yes, your advice is much suitable for the person who is recently involved in the line of cryptos. I you have sound knowledge about crypto trading, then there is no matter what coin you choose and how much invest in. But If have amount and think to invest in the trading, well, you should learn and gain experience first than take your decision. Because without a detailed knowledge about the fundamental & technical analysis, risk assessment etc, neither you examine the behavior of crypto market and nor the chance to earn money from it. So, do your homework completed all the way, Start your trading with low value tokens rather than towards big. Further, you must kept in mind about the loss first than profit.