Paying 0.6BTC to such a group is a waste of money.
Logic behind is that: If one can make money from trading, he or she will be busy trading rather than teaching others how to trade.
I used to do trading for a while, but soon found out that for someone without trading background to make profit at the market its almost impossible. Thus, I switched to mining.
The rules for trading are:
1. develop a trading method and stick to it, rather than learn it from someone else, no one will share their successful trading method.
2. Know when to stop loss and when to take the profit.
3. Do go all in. You never want to put all your money into the market.
Thus, normal people who have the skill/capital/time to make enough profits from the market that actually matters, and you will be spending most of your free time tracking the market, does not worth it.

In case you have some disposable income and you really want to invest in bitcoin, then I’s suggest you to go for cloud mining. Companies like RRMine and Bitdeer offer such services and this investment is definitely worth it.

I’ve been using this method for the past 2 years now and hopefully saved myself from the wrath of the market destabilization and older mining techniques. I use RRMine for this. They’ve a variety of products, lock-in period of 30 days, 90 days, 180 days are also available. After the end of the lock-in period, users can freely trade or renew their computing power contracts. The contracts can be transferred to other users or repurchased by platforms then users can recoup their costs for buying contract.

You can also pay $13.99 for 7 days, the mining profit will cover your cost for purchasing the computing power

A fixed investment will get you a more stable income, and you can choose to sell mined BTCs when the price is right for you. Also you do not need to know how to set up, operate and maintain a crypto farm, these companies will take care of them all for you, it’s more of an investment instead of a technological challenge.

You can easily register on their websites and RRMine also has a mobile app, I don’t about other but I find this very handy.

Hope you found value in this answer and please stay away from such trading groups and scamsters.