it depends on you yourself to be sure that the personal money you have will become a steady income later. but you should continue to analyze the things you have done. this is not so easy to explain and before all you feel it will be easy. The bigger your investment, the bigger your profit level.
Everyone may have their own personal reasons for staking their cryptocurrency but we must also considers the consequences in doing this, it is believed that everything that have an advantage will sure have it's disadvantages no matter how small, there are may cryptocurrencies one can stake and make more or end up loosing more, but the particular decision we are making on that desired coin we want to stake is very important, it must be something worth of value that cannot disappoints in future and a good example is bitcoin and few altcoins.
I don't know of any service where you can safely delegate your bitcoin to make a profit. In my opinion it's not a good idea to trust your money to a third party. As for altcoins with pos algorithm, eth is probably the most profitable and safety, but you need a lot of capital to make profit. All other altcoins fall in value and the profits on staking will be negative in the future.