I cannot promise you a specific return on your investments held in anything other than a GIC or Savings Account. In regards to Investment Funds, all we can do is analyze past performance data in hopes of getting an idea of management style and potential performance. This is also why we complete an investor profile.
The best strategy for investing is to buy and hold assets and watch them grow with patience. Also, the time to contribute more is when market performance is on the decline and investment pricing is going down.