Solar returns are forecasts for the upcoming year. They can be read largely like a natal return chart, but are transient and focused more on events that may shape you rather than who you are in essence. Make sense? I hope so.
Because the solar return chart is a chart of transits, there is a good chance that what you are experiencing now will carry over into the next year. I have had transiting Neptune opposing my natal Mars/North Node and recently, opposing Jupiter. This is going to remain for a few years, and will certainly show up in some manner in my solar return chart.
To cast a solar return chart, you can either use your astrology software to create a chart automatically, or you can use an ephemeris to determine when the sun will be at the exact degree and minute that it was when you were born. This creates an entirely new chart. For the sake of not having to painstakingly create a chart whole cloth, by hand (which does have its merits), make one on the computer.