Kinda freaking out, going to the doctors tomorrow, please wish me luck

I found a lump a few months ago, I did some research and figured it was an in grown hair as I didnt think it was attached to the testicle, I also used to have those in grown hair type of lumps as a kid so it just reminded me of that so I was like no big deal, will probably go away on its own.

Fast forward to now, I cant quite tell but I think its gotten bigger? I havent been inspecting it every day so im not quite sure but after feeling it properly for a bit ive realised that i dont think it is attached to the skin, its on the testicle.

Im kicking myself for not going to the doctors sooner and coming to my own conclusion cause who knows how far its progressed if it is what I fear it to be.

I dont really know how to feel, I've recently gotten my life on track after years of anxiety and depression which led to self isolation. Finally got a job I enjoy with co workers I like, really dont want to lose what I have if I have to stop working for treatment.

I hope im just overthinking things but its hard not to in this situation.

Sorry if this post violates any rules I just needed to get my thoughts out somewhere.