you can grow your bitcoins through a multiple of ways, you can grow your bitcoins if you invest your money in gambling, you can also grow your bitcoin if you invest your money in alt coins, you can also grow your bitcoin if you lend your bitcoins to some one.
yes that is right to say that there are so many ways of growing bitcoin but to me i think the best method is to invest your money in alt coin and from there you can really make good profit,
Trading honestly is not easy to make a good profit so i think better to start study first in trading before you invest a large amount.. this is not the only way to grow btc like other said many ways that we can grow bitcoins., for me as a publisher i am earnings few bitcoins there i invest small amount of bitcoin for domain and hosting and earnings few bitcoins it is enough for me that i am growing my bitcoin by publishing new content and monetizing my blog..