nah it's not fucked dude, really normal, I got some shit on my DSLRs as well, get some swabs and swab juice and clean it, don't use cube gels because they'll just fuck your sensor up.
I've used 22 swabs on my d7100 in total without any troubles and I'll be cleaning my d810 which has shitton of dust in it currently.
just learn to swab properly so you won't leave any residue from the liquid on it, it's pretty easy to do, if there's liquid residue in the form of stripes just swab it one more time or until you get it, putting pressure on your sensor is important but besides that it's pretty easy to do.
you'll probably need 3-8 swabs for the first time you do it but after you learn it, it will only take you a single one, useful skill.
don't be afraid because the sensors can handle it thanks to the layer of glass they have on top of them and are pretty much made to be cleaned, just don't clean up liquid with a dry swab, use a bit of pressure against the sensor instead so there will be no residue.
if you can't be bothered to clean it yourself just send it in to a cleaning service or something, it'll be much more expensive though and learning how to do it yourself is pretty easy and useful if you switch lenses a lot.
try shooting at f/22 or above if you can at a blank surface to look at your dust particles more closely.>>3432889
wait does it show up with other lenses or what? if it does you're safe because lenses are hard to clean depending on where you get the dust.