Trying To Synthesize My Tinitus

Hello, I'm new to Syntorial and have been slowly working my way through the tutorials (about a 1/4 way through). I'm interested to try and synthesize the tinitus that I'm hearing in my head and am posting here today for some advice. What I'm hearing in my head is a mix of a high pitch hissing sound combined with the sound of a Cicada. Any ideas's? Thanks in advance.