Comment by NoGravitas

Get a pack of Pilot Varsity disposable fountain pens. Just write with them, with no pressure. The cheapness and disposability means no reason to be intimidated. Then after you go through one pack of Varsities, buy a Pilot Metropolitan for about $20, and optionally a $10 piston-fill adapter and a bottle of ink. A Metropolitan is one of the cheapest "good enough" fountain pens.