Every month I buy Bitcoin from %50 of my wage. I think it's the best saving method for long term. I don't do trade much, it's too risky for me.
Nope, trading is not risky as gambling or may be mining altcoin. I think trading is much fun to play it, because it has a lower risk than others and you can
get good profit too from that so start on taking this as one of your income besides signature campaign or even faucet
The risk isn't lower, you're just lowering the possible gains and loses. Say you have $1000 and the same in Bitcoin and you gamble with one and trade with the other. Playing in a casino may get you broke in a couple minutes, but you can also double the money if you're lucky. If you're a bad trader you'll need days or even weeks to go broke, but it will also take days, weeks or even months to double the investment.
you should not ever compare trading with gambling. they are completely two different things!
in gambling you have no way of knowing the outcome, absolutely no way, no matter what kind of gambling you are doing. say you flip a coin, you can never predict the outcome so it is 100% based on chance.
but with trading it is possible to predict the market state and price "to some extent" so it is not based on chance. there are many factors that can be studied, and then you can make an informed decision. so the risk is much lower that gambling on a chance of winning.