I guess not everyone goes to therapy without experiencing some depression or going through extremely bad things. But for example, I can’t control my emotional ups and downs; I keep criticizing myself in my head. Do you think this is a good enough reason to go to therapy? Or am I exaggerating a bit?
I had a friend who said to my face, ‘Are you going to therapy too? Is it that bad?’ But it was just a phase I went through like a hobby. It’s hard for everyone to understand, you don’t necessarily have to be going insane.
I think you have enough reason for therapy. That inner voice just wears a person down. I was always finding myself incompetent, then I started therapy. It turned out that I needed to be more aware of my strengths rather than my weaknesses.
So I think you might be overreacting a bit. If everyone rushes to therapy for every little thing that’s bothering them… Sometimes a person can manage their feelings by themselves. Therapy shouldn’t always be seen as the first resort, in my opinion.
Emotional ups and downs and a constantly critical inner voice are perfectly valid reasons to seek psychological support. Therapy can be chosen not only for depression or trauma but also to develop emotional awareness. You might first try scheduling a preliminary consultation.
Let me add that I actually struggle both at work and socially because of this constant self-criticism. So even if it doesn’t show on the outside, I always have some insecurity inside. I think this is the issue 
In our time, no one would think of such things. Ups and downs happen to all of us; you would sit down and talk about it, share it with an elder. Now, it’s trendy to go to therapy. Everyone has started to think very individually.
I had a period like that too, with sentences constantly swirling in my head like ‘why did I say that, how could I think like this’… It feels like it will never end, right? But therapy is a great way to break that cycle. There’s no harm in trying.