Note: the below answer is meant to be constructive. The best way to start in any field is just to listen, learn, and do something. By actually doing something, you best show your intentions, and you get more people listening to your questions.
I am pretty sure Google can help you with getting started, and otherwise have a look around at this forum for topics you like. I have seen questions like yours many times, like so many others before you, you have no idea where to start.
However, like all those before you, you make a classical mistake: you forget to formulate what you really like to do. Never ask others what you should do (with your life). Instead, use Google to read up on topic, look around at (Open Source) bioinformatics tools, possibly get additional non-IT education, and decide for yourself what domain question you have. Only then you should start asking around how to proceed.
The reason underlying this, is that those reading your question, like me, have no clue about your background, your interested, while at the same time, there is so many interesting things to do. You basically ask us what is the answer to the world, but I am pretty sure 42 is not the answer you are looking for.
So, first do some research yourself, pick a topic yourself, formulate questions you have on that topic that Google, Wikipedia, your university courses do not tell you, and then pose those questions.