how old you are, but it can have a bearing on your chances. If you are under 40 you are far more likely to be able to acquire the necessary skills and still have a chance of making a career. Much over that and I'm afraid your prospects start to worsen. It sounds brutal, but it's true, and there's no point in saying otherwise. There are always exceptions to rules of course, but it's best to start out by being aware of such things.
I'm going to assume that you're under 40 and reasonably computer literate, receptive to new concepts, and have the ability to work as part of a team. If you can tick all those boxes you have a chance of making a career in IT, but.....
The road may be long and at times painful. Nobody is going to offer you that plum job until you can satisfy them that you know enough about networking to be of value to them, and I'm not just talking of theoretical knowledge - you'll need to slave at the coalface of IT (network support) for a while to gain some hands-on experience.
If you are about to become redundant you'll need to generate income, and that's your first problem; you may have to just get a job - any job
to keep the wolf from the door whilst you study networking topographies and server technologies. Those two topics should be your aim. How you learn is very much up to you, but any company which tempts you with vaguely-worded 'guarantees' of a glittering post in IT after you've completed their £5000 training course should be avoided like the plague. There are good training companies of course, and they'll be the ones who make no wild claims about jobs. Good companies will be realistic in terms of your future prospects - training certificates are all very well, and many employers will be reassured to see you have them, but in the final analysis it's you who will land a job, not your paper qualifications. Scour the web for free online tutorials - they're out there. Download free server software and practice - knowing your way around Apache, Linux, and Windows networking will be invaluable assets.