We've had a Galaxy Tab2 since 2013 that is still going fine, although I've factory reset and battery reset twice. I did both at the same time each time. Also just make sure it isn't clogged up with apps, photos, videos and other bits and pieces that don't need to be there.
This post might be best moved to off topic discussion>random discussion? I apologise if I've misunderstood and there was a good reason for it to be in here.
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Diagnosed ASD
AQ: 42 (Scores in the 33-50 range indicate significant Austistic traits)
RAADS-R: 165
RDOS: Your neurodiverse (Aspie) score: 159 of 200
Your neurotypical (non-autistic) score: 44 of 200
You are very likely neurodiverse (Aspie)