i did mine espers 2-3month with an older 8core and got a nice reward (around 30mill).

now i swapped to ESP2 and bought a little bit, so i have around 5mill ESP2 and i am trying to stake (single, no pool).
does that make sense, or is it a too small amount to get a reasonable reward out of it (ok, now everyone would say buy more, no fomo please)?
 
thanks for your thoughts