A youthful work by Smetana displaying early influences of Romantic virtuosic tropes. It is characterized by its restless rhythmic drive and idiomatic Czech melodic turns.
Focus on crisp articulation and controlling the energy during the shifts in dynamics.
Comparable difficulty and character — good candidates for what to learn next.
Allegro capriccioso, JB 1:32 is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7. In the RCM system it corresponds to about level 7.
You should be comfortable at Henle level 5 — meaning you can already play level 4–5 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of Allegro capriccioso, JB 1:32 lasts about 3 minutes.
Allegro capriccioso, JB 1:32 is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.
Pieces at a comparable difficulty and character include Blaník, JB 1:112/6 by Bedřich Smetana, Allegro capriccioso by Bedřich Smetana, Ballade in E minor, JB 2:43 by Bedřich Smetana — see the full similar-pieces list on this page.