How i doubled my investments in 25 days

The story is pretty simple - i saw cryptotraders waving me out of "bitcoin at $2k" train and decided to start investing in cryptocurrency and try to "play a blonde". It's a pretty simple game and anyone can do it.

During the first 10 days of may market capitalization of top 10 crypto's pumped alot - 48%. A lot of are talking about the cryptocurrency market, and only the laziest ones aren't interested in how to join.
In the beginning of may I happened to know about Vitalik Buterin, ethereum creator, speaking at the Saint Petersburg Economic Forum, it was pretty clear that it will be a huge gain.
It all came down to the simple question - what should i buy? The bitcoin is pretty volatile and unstable, +/- 30% a day is normal for it. Relying on ETH is stupid because even it's creator have said numerous times that it's not a currency, not an investment source, even though 2500% gain in 2,5 months. I needed to choose several crypto's and I've chosen the dumbest (and the simplest) path of them all: i bought all top-10 cryptocurrencies in different proportions.
The logic was pretty obvious - if they've grown already, why won't they grow more? They're the basement for all blockchain systems, they're market leaders on volume, and where's volume - there's movement.
Then, all of a sudden, i started coming across different ICO analysis articles - people wrote about '8x gains' and '12x in 3 days'.
And i thought to myself - why should i bother? As a true 'blonde' I bought top-9 crypto's from coinmarketcap.com

Summing up, I've got myself $4200 (240000 rub) worth of cryptocurrencies at 15th of may.

On 9th of June, i looked at my blockfolio and saw a pleasant picture:

My crypto's cost was $8400 (480000 rub) or 100% in 25 days.

So, as you may have noticed, the point of that strategy is pretty simple - buy top-10 and hold them, occasionally buy hyped ICO-crypto's, which you can then sell by the end of the month.