I would guess ISFP
I don't know if this will help, but ... I'm thinking of the differences between two people I've known, one who is for sure INFP and who I know very well, and the other who I'm reasonably certain is ISFP (and actually, I think I knew at least one other ISFP but that was a while ago).
-Playing with numbers as you describe (hating math but playing with numbers like a cat in catnip) could be either INFP or ISFP as both have Te-inferior.
-But. Just from reading your post, you remind me far more of the ISFP than the INFP in how you write and what you think about. The ISFP I knew was very very intelligent and grounded in the physical world (Se-aux) and this part of what you wrote resonates strongly with how she might have expressed herself:
there is so much we haven't discovered and so many unanswered questions that often keep me wondering i often think of the miracle of plants as they grow from the ground . I swear thinking is a past time to me
in the context of:
I have a love for writing i swear everyone must,but its an obsession to me i often try to express myself by talking but it doesnt work. They often call me ignorant when i say what i believe in and for awhile i began to believe that. well i think everyone is ignorant (not stupid)
I think an INFP would be more word-based in the description than you are here. That sentence about plants is about something important to you, you say you are obsessed with writing, but your actual writing is a tip-of-iceberg statement expressing something deep without a lot of words for elaboration - it reminds me a lot of how the ISFP I knew would write. She had this brilliant active mind but her words tended to show only the tip or surface level of that brilliance. In contrast, the INFP I know uses words in a much more in-depth way, offering more elaborate descriptions.
I began to ramble for a while
IMO, an INFP written "ramble" would be far longer and more elaborate than what you wrote.
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I think ISFPs are going to be more immediate-physically-attuned (Se-aux), with an underneath resonance of connection to a larger web or reality from that Se space (Ni-tert). The Ni-tert yields a deep resonance to whatever you feel, but Se-aux focuses more on immediate sense-based experience than the kind of elaborate descriptive use of words an INFP would show.
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And I'm hesitant to say this next because it's vague and not something you can show in online posts but just in case it's useful: I think I've known three ISxPs - one ISTP and two ISFPs. All three of them had homes that felt really really good to me - safe, comfortable, good energy. It wasn't the actual places, it was what they did with them. It's like they had a way of arranging physical space and objects that just felt really good to me to be inside. I think that this feel had something to do with Se-Ni in them and Ni-Se-inf in me.
In contrast, the INFP and I share a feel of what kind of land and space feels good, but neither of us is especially good at arranging physical objects to make things feel good inside that.
Also, the two ISFPs were amazing cooks. My INFP likes to cook, and she's somewhere between good and okay at it, but the two ISFPs were almost genius level in the food they would make. And I generally don't notice things like that - to me food is food and I don't notice cooking talent. But both of the ISFPs I knew made food that even I noticed was amazingly good. I would guess that it has something to do with Se-aux again. And maybe, somehow, Se-Ni again somehow, it just felt so good and right and deep-level nourishing to me. I don't want to say that all ISFPs would be good cooks (I don't like personality trait stuff like that) but it was really striking to me, the food that the two ISFPs would make.
I don't know if there is any way to assess these things. Maybe they're just good examples of Se-aux/Ni-tert in action.
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And just to note (probably obvious but): All of what I write here is very specifically from my perspective as an INFJ and assumes I am correct in typing the ISFPs. If that is correct, in my experience there's a Ni-Se/Se-Ni resonance that's happen between me as an INFJ and ISFPs. IN my case, we haven't been able to sustain long term deep connections, but the connections have been very powerful and enjoyable (at that sense-based/underneath resonance level) for me when they were happening.