almost all options sellers make 30-50% on capital a year.
then they all wind up working at Burger King on the express line.
Who told you that cute little big fat lie?

The whole options business is rigged in favor of options sellers (also known as writers) , not options buyers. The BlackâScholes model has been designed to screw as many options buyers as possible, slowly but surely.
To original poster, there is no such thing as a fixed income in trading. If you want fixed income start your own business (rent houses for example), or park your money in a savings account.
http://www.tradingeconomics.com/country-list/interest-rate
