1) buy bitcoin and store it in the wallet for the next bull market to come. And he told me to buy it in the bear market and invest it for a long term investment for like 3_5 years period, so I am planning to invest for the long term.
2) trading is the buying and selling of bitcoin in the market at all time or anytime which gives you profit if you can trade well. But trading is more risk than investment.
OP, welcome for your nice plan. Thanks to your uncle, you came to know about bitcoin because of your uncle. OP seems you have little idea about bitcoin, I would suggest you better invest in bitcoin than trading. You can invest in Bitcoin by having a good idea about Bitcoin investment. At the moment I think you have a good chance, because the price of Bitcoin is very low right now. If you invest in Bitcoin now and hold it for a long time, expect to reap huge profits. OP have you heard about risk in bitcoin? Investing in Bitcoin is risky. You don't buy bitcoins all at once, you buy bitcoins following DCA.