Letters of Recommendation

Hi! I was wondering if it would be okay if my letters of recommendation come from my freshman and sophomore year teachers? Out of all the teachers I’ve had, they are the only ones who knew me personally (and both teach subjects that I plan on majoring in). I reached out to other teachers from my junior year, but they just asked me to write my own rec letter from a template and they’ll turn that in. // I have another teacher in mind - would it be okay if both letters come from the same academic field?