Deciding between Mechanical and Electrical engineering

Hello, I'm majoring in physics at the end of the year but I'm more interested in engineering now. The thing is that I could start taking Mechanical engineering classes now and obtaining the degree in two years from now (without obtaining the major in physics), or I could finish the physics major this year and later get a degree in Electrical engineering in three years from now.
My problem is that I don't know which one is the better choice since I like both, so I'd be glad if you could tell me about your current job as a Mechanical engineering or as an Electrical engineering. I'd like to know what do you exactly do on a regular day. I'm also interested in programming and my marks are pretty well for now if that helps. The job prospects after graduation are important for me too.

Thanks.