Depends on ones mindset i guess. Personally i would say stick to technique based playing for a couple of weeks to actually get some strength and independence back to your fingers. For this Hanon is excellent. Small repetitive phrases where you can focus 100% on technique. For those saying "go to sonatas etc" that would be like telling a runner who took a year off to start with 3000m track. You need to have the physical strength and stamina to run that distance, as you do with playing Scarlatti sonatas. Once you reach a level where your fingers are independent, strong and you have built up stamina, Hanon has served it's purpose. Until such time, include it in your practice routine. Or set aside an hour a day in the morning, wake up and play scales, arpeggios, cadence chords, exercises (Maybe just 3 different exercises from Hanon) and an etude (this gets harder as you improve. Start with Czerny or Clementi and move up until you hit chopin, liszt etc).Then come back to the piano late in the day and only play pieces. This way you spend the majority of your time playing pieces, but you still have a small devoted slot every morning to purely technical aspects. Very good combination that i have used and my technique has improved exponentially over the past 6 months. Just my two cents and hope you find it helpful
Most definitely will try. And thank you for pointing that out (what I highlighted in bold). Any Clementi you suggest? Thank you.