They do. You can buy the same ingredients and equipment at home and make it yourself.

When you buy coffee from Starbucks or whoever you are also paying for

1. Someone to make it for you.
2. Somewhere for them to work and possibly somewhere warm for you to sit whilst you drink it.
3. Someone to have purchased the equipment that you would otherwise have to buy up front.

Coffee shops also have to be located in high footfall locations where rent is going to be higher than your kitchen. Almost all of the cost to the retailer in providing you with the cup of coffee is the cost of providing the convenience rather than the product. But convenience still costs them money.

Some people find talking to someone non-judgemental and trained on uncovering past trauma to be helpful.

It isn't for everyone. Personally (abusive alcoholic father) I can't think of anything worse and it's been intensely horrible even discussing it with mental health nurses. For me, bring on the medication to wipe that shit from my mind 99% of the time.

You don't say why you're seeking therapy, but I would guess either your personality type isn't one that is suited to therapy, or whatever you're seeking therapy for isn't something easily solved by therapy. It's important to remember the brain is hugely complex especially when it comes to past trauma, and sometimes you will need medical help/medicine rather than/in addition to talking therapies, especially for intrusive thoughts, depression etc. Remember, if you only have a hammer then everything is a nail, and if you're a therapist you're likely to think therapy can solve more than it actually can, just like doctors think medical interventions can solve more than they can. The reality is somewhere in the middle.

Either way, I hope you get it sorted.