methods for growing bitcoin is by way of investing in a variety of favorable sites and participate sig campaign 
What kind of site that you've invested your money?
i think participate signature campaign is not one of the method of growing your bitcoin
because you dont need invest your money to earn bitcoin
Most of the cloudmining Services are pure garbage and work like a ponzi scheme.
To find a trustorthy one is not easy at all. So I will look for other options.