I am in my first year of a PhD. The only thing I look forward to in the morning is grading/prepping lab/office hours for my twice a week TA assignment.
The nature of my program is very stressful, and I am not sure I will make it to the fun part (research). I am very likely to never pass my qualifying exams to get to the research part of the PhD. Which is a shame because I have loved my past research experience in undergrad and the Fulbright.
And so I'm looking into teaching residency programs for HS physics teachers. Should I ask my TA supervisor for a letter of rec? He likes me and I'm sure would be able to supply a letter of rec with some nice "show don't tell" anecdotes. The risk is that he is a part of the PhD program I would be leaving. Given the nature of STEM PhDs in the US (Im not paying tuition) leaving seems a slap in the face, like I stole their money by taking courses without paying.
However I have always been under the impression it's best to get recent letters of rec.
Should I just stick to undergrad letters of rec?