I've had it for years (15+). It varies - there are periods where it is really annoying and others where I go for weeks not really noticing it much. Right now it's been mildly irritating for months.
Definitely more noticeable when I'm anxious, tired or worried or been drinking alcohol. Worst at nights when I go to bed in those minutes before I go to sleep, or in any room which is really deadly quiet and I have nothing to do/distract me. I can't do silent meditation or quiet breathing type yoga for this reason as I can't switch my brain off enough and the tinnitus just prevents me relaxing. Some relaxation techniques do work but I need background noise.
I too have a menagerie of sounds. Today it's loud high pitched fuzzy white noise with the occasional even higher pitched whistle sound (like a old fashioned kettle on a stovetop). Sometimes I just get the whistling but continuous. That's probably the worst as it's usually at the same monotonous high pitch and very loud. I also sometimes get electronic door bell buzzing, and 'drilling in the wall' noises and intermittent beeping. Oh and chirping sounds similar to birds at dawn chorus.
If I start thinking about the tinnitus it gets louder and more intrusive. Distraction is the best technique for me, keeping my mind or hands busy with something else. When I am focused on a task it fades in the background a lot more. I don't usually hear it outdoors, when running, in a park, talking to friends etc. Indoors I need constant low level background noise, TV/Radio/audio books/music unless I am so absorbed in a task I've gone into a trance state.
At night I used to have a sound machine, to help me get to sleep. I no longer really need this as I've trained my mind to think of 'happy place' type visuals and go to sleep quickly. You can get apps for sounds now, I hate anything with tinkling water as it makes me need the loo but waves on the shore were OK.
One thing I have found - it gets worse immediately after I have exposed myself to anything high decibel, e.g. a music concert, sound of jackhammers in roadworks Ears will ring for days after that before calming down.
It's not great to have but it's liveable with.