My university mentor accumulated a set of his own trading system based on 8 years of experience; whoever uses it profits (suggest to like and save to avoid losing it later). Let’s get straight to the valuable content.

First, exchange this 3000 into 400U; we will proceed in two parts:

Step 1: Small capital snowball method (from 400U to 1100U), take out 100U to play each time, and choose recent popular varieties. Remember two things:
① Run away when you double your earnings (for example, if 100 turns into 200, pocket it immediately for safety)
② If you lose 50U, stop loss in time. If luck is good, you can roll it to 800U in three rounds (100-200~400~800), but take profits when they appear! You can only play three rounds, and stop when you earn around 1100U. This stage relies heavily on luck, so don’t be greedy!

Step 2: When reaching (start diversifying at 1100U)
At this time, divide into three parts:
1. Quick in and out type (100U) focuses on 15-minute price fluctuations, stable coins like Bitcoin/Ethereum. For example, if you see Bitcoin suddenly surge in the afternoon, follow the trend, make a 3%-5% profit and run, like a street vendor, small profits but frequent sales.
2. Zen dollar-cost averaging type (15U weekly), consistently buy 15U of spot Bitcoin every week (for example, now 10.5W), no need to panic if it drops, wait for a year or two, you will definitely profit, suitable for those without time to monitor the market.
3. Main event trend trades (use the rest) when you see a big market trend, go all in! For example, if you find out that the Federal Reserve is going to cut interest rates, Bitcoin may surge, directly open a long position. But you need to think ahead: how much to take profits (for example, when it doubles) and how much to acknowledge a loss (generally stop loss at 20%). This strategy requires understanding news and technical analysis; beginners should not act rashly!

Important reminders:
① Use 1/10 of your capital to build a position each time; don’t go all in with high leverage.
② Set a 20% stop loss for each trade to avoid wrong direction.
③ No more than 3 trades per day; if your hands are itchy, go play games.
④ Once you reach your target, take the profits; don’t think about 'making one more wave'! Remember: those who get back on their feet using this method are tough on others and even tougher on themselves!