@ciara683
I don't think a jeweler can help fix the screw... but I agree on the watchmaker...
the only danger of going to the watchmaker is that his tools can get REALLY hot (>100000 degrees F)... enough heat to turn 50 pounds of steel into butter(epic way to remove a screw).... having that type of heat next to both the plastic and the motherboard is risky unless he/she is professional
-my idea- (NOT RECOMENDED)
since I'm in engineering @ high school I know one way to fix striped screws is by getting a flat-tip nail, hammering it on top of the striped screw, making a | shaped hole, get a flat-head screw driver that matches the new hole, unscrew it, and now your done.
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If u got the screw out, your know down a screw and you must be like "dang"....
refer to this link if you need a replacement(must have unwanted tamagotchi connection v1-6.5)
https://www.tamatalk.com/IB/topic/183076-tamagtchi-p1-p2-screw-replacment-answer/
(figured that out when mine came in, right screw was almost all worn out...)