If you want an investment that goes only one way- upwards- you should consider investing in real estate. Other avenues are either low-return or high-risk ones. This means you are either stuck in an unprofitable allocation of your money or walking a thin line with potential risk of bankruptcy. You can avoid both these extremes with real estate.
Property investment is a systematic activity and you attain proficiency over a period of time. There are no shortcuts or instant solutions. Investing in real estate brings continuous cash flow in the form of rental income and capital appreciation through surge in market demand.