I think in honesty you should wait for your pack, maybe 'trim' the bad things out of your eating for now and lessen the amount of oats in your porridge, add more fruit to it to fill it out. There are limits that you'll need to work towards.
But for us to try and explain it all to you on here is going to be really hard, we're not experts and there are bound to be pitfalls. So think of it as getting yourself into the right frame of mind, making changes and getting going once you've had a good read of your pack would be my advice.
Good luck