Right now I only have 10% of 1BTC, I haven't saved a lot of BTC since I only started 3 months ago, but I am planning to keep this for like a year or two and will see if the amount of BTC will increase, I also invested in trading so that I can slowly grow my bitcoin.
You have a good plan to grow your bitcoins and also at the same time to earn some profits by holding them for next couple of years as trading will give you short term profits and will also contribute in growing your coins slowly and steadily.