I personally feel first-person is very difficult to pull off, that is why I write in third-person. I think third-person present tense is more uncommon than first-person or third-person past tense. I wanted to write in third-person present tense because I would understand it better (my native language has no tenses), yet I am thinking of challenging myself by following a more common form.
For me, the one who knows their works better is the author themselves —and I don't like to dictate hard rules for others to follow from my own preference or a conventional norm. I am sure you have your own reason to choose a certain narrative type, and you can stand by it. Even if you cannot, your own comfort is enough of a reason. I know that the use of present tense in narration is often looked down as "amateurish," and third-person is out-of-style or boring; your combination. However, I am sure if you keep it true to your vision, keep improving yourself, and listen to feedbacks; you can make it work. As for myself, the clarity of narration is more crucial (and I cannot really distinguish tenses, so it does not matter much) than whatever POV or tenses the novel uses. I would rather read a clear first-person narration (which is not my preference), than a purple prose or unclear third-person. Lastly, there are published novels written in the same narrative style as yours, why you cannot?