Never (in nearly 20 years) heard it called a training year - but perhaps its different in your unit/corps.
It's not your desk officer you should be ringing as TheCheerfulSubbie suggests (although he is normally spot on about these things). You have been out of Sandhurst for 2 years, and because you are a graduate you have been promoted early to Capt (all of the above I assume from your post). You belong to your current Regt/Bn/Unit. You should be having a conversation with your current OC/Adjt/CO and probably in that order. If you have impressed your OC then he will support a move to a job which interests you and this will in turn get the Adjt/CO onside. You are too junior to go to RMAS/Brecon etc so I would recommend that you consider the merits of Sp Pl Comd (if you are in the Inf/Cav. I am sorry to seem a bit negative but you don't come across well in these posts. Probably my mistake.
I don't think you were being laughed at nor were people not answering - everyone is trying to help you with the question. Don't quite know what you are after then. The answer is to speak to your OC/Adjt/CO. If you don't have their support or buy in then all the little schemes that you have planned or the fantastic job that you reckon you should be doing next will never happen. Speak to those people in your CoC and from that they can then advise you what to do next. Maybe you have already got that thumbs up in which case ask your mates in the Mess what they would recommend. Ultimately there are loads of people around you who could answer this question - why turn to the internet?
The other posters are a little frustrated that you are coming here as a first port of call. Sadly the Army has deemed you worthy of three pips after 5 mins in the Army and therefore you should be able to aquit yourself with the experience and get up and go that three pips should attract. RANT OVER
There are a plethora of jobs not limited to the following:
Adv Trg Centre Officer
Independant Coy Pl Comd (possibly 2IC)
Sp or specialist Pl Comds
2nd tour as a troopie (sounds like it could be beneficial to you - no offence meant)
Junior Equiry to minor Royalty
Certain public school Adjutants such as Eton
Or you could consider actually going to a training establishment and investing in our most precious raw material - recruits.
Gosh, things have changed, maybe I was just a thickie SMC punter but I had a two year stint at a Depot after nearly three years as a Platoon Commander, can i suggest you stick near the troops for as long as possible because your days with them are in my experience the best and happiest you will have.