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you should wait, but follow the news and follow the trend. look at charts on tradingview.com where you also can follow haejin, and most importantly look at BTC charts for atleast 1h or 4h charts to see the whole picture of it. buying now could be an investment, but if it drops to 5k or even 4k it could have been an early impulsive buy IMHO .

Strongly recommend laddering your buys as @haejin suggest. What it means is never spent all your capital in one buy, segregate it into smaller chunks. So if you have $500, you can divide it into 4 parts of $150 each and buy Bitcoins at 4 different price levels. You can find his tutorial on that topic. All the best.
https://steemit.com/bitcoin/@haejin/an-effective-buying-and-selling-strategy-laddering-a-tutorial-on-to-cast-a-ladder

If you're a newbie you should probably wait until the graph flattens out. Disclaimer: This is not investment advice;)

dont go all in.