@xplosive I followed you since Steem and I think you are a lovely chap and I quite like you. I make an effort to visit your page quite a bit to see if you are ok.
But you need a bit of tough love to put your arse in gear. It's time to stop thinking and start doing my friend. There has been lots of suggestions around your predicament from commenters in recent months but you are still in the same situation waiting for others to do things for you. Your landlord was never going to get a door. That's a fact. I think everyone knows this. @alt3r gives a good suggestion about what to do but yet I do not think you will do anything about it but write next week that you are in same situation. Every little helpful tip was answered with a "BUT" over the last few months. So first off you need to look at this and think about it,

You need to start taking action by visiting your DIY store and buying some items to block up these gaps. Youtube videos will show you how to mend things . I am sure your brother will help you with making the house warm. The next post I see you write I want to see progress no matter how small. Otherwise it's just another "woe is me" post.

If you are not going to help yourself then you are going to have a very tough Winter. If you asked 1000 people on Hive , 1000 will tell you that your shelter must take priority over any pet no matter how dear to you it is.
This would solve most of your problems straight away as you would be able to find a place to stay easier. Give your head a wobble and get priorities straight. The bird may be your soul mate but you need to start making tough decisions or we will be here next month in -10 freezing our tits off.