You can talk about the work stuff if you want. Lovely picks for the languages - I have family who speaks Italian (will get to see them in about a month) and it always sounds really nice listening to them.
Uranus in the 1st opposite Mercury will definitely make things buzzlike and exciting around you and I'm thinking the rest is the Saturn-Pluto square. Pluto in square always likes to throw you curve balls whenever you have things stable and tuned in.
Yep, it does suggest exercise as one possible outlet for the strong energy with the conjunction falling in the 1st house but more so the sun in the chart is always "becoming" something so with this placement you are becoming more martial - people will get the feeling you are not to be messed with this year - plus with it being in Leo you'll make an impression just by being present, which is good indeed.
Jupiter is sporty so not surprised you felt like pouring energy out with exercise. I'm thinking too the Mars-Sun in the SR will make you just feel good about being yourself regardless which should help with staying motivated if you decide to go for an exercuse routine. It is more even more general than that though so you'll just as easily be able to work on the language learning or anything else you want to "do" at this time.
To give you a counter example, I don't normally exercise much although I can't sit around either (Mercury-Asc.) During my Jupiter-prog Mars transit a few months back I had to walk some 8+ km a day just to work off the energy of that. Like you I also suffer from pain most of the time so that was actually pretty painful for me.. another transit I've been having is Pluto sextile Mars which can also be considered an exercise promoter except it has worked in other ways for me - where two friends of mine were both affected more literally by their Pluto trine and square to Mars - one has gone back to the gym on a daily basis, the other picked up running and kick boxing.
I think here the Sun-Mars will help you the most since it translates motivation into action, while Jupiter keeps you feeling good about doing it all. It might even make you feel you're just fine already which would be best, and then you can go through with the exercise as a "want to" deal.