I would suggest Ballades no.1 and no.3 as techniques are interchangeable. Also Scherzo no.2. in conjunction with Op.10 no.1 and Ballades you should recognise similarities. Mix it up with Nocturnes op.55 no.2 and op.9 no.3 and you should take great pleasure in your program of practice and play for pleasure. Later, ballade 4 and scherzi 3 & 4, and Impromptus. The more Chopin you play and familiarise the more you will notice similarities and will work out your own approach to deciding which order to play them in. Mazurkas are widely misunderstood but I wholeheartedly recommend you include them in your weekly routine. I'm only an amateur pianist so can't provide specific advice but wish you luck in your endeavours. Throw a couple of the other etudes in the mix for added enjoyment. Op.10 no.8, op.25 no.9 and op.10 no.5 will delight. Good luck
(New to Pianostreet!) I would definitely recommend the Fantaisie-Impromptu op. 66 and maybe some nocturnes, Op. 15 no. 1 or 2 or Op. 55 no. 1 or 2. If you really want a challenge, try some etudes like Op. 10 no 3 or 12 (both famous) or maybe the Scherzo in B-flat minor, op. 31, even though this one will take a while.