It must be really hard to cope right now, but:

“These people have made me feel like I am fundamentally incapable of being loved.”

Really only you can do that – how you feel is your choice. I know this might seem difficult but it really is true. If other people can’t commit to a relationship it’s they who can’t be loved, not you.

I think the first thing you could do if possible is find a new job – this will change the scenery of your life and that is the best way to get over things. Go on holiday, perhaps – or travelling longer-term if you can. Losing your stuff is crap but you are more important than your stuff and so is your happiness – try to let it go. Maybe even move house if it reminds you of the burglary.

“I have nothing and no one” – you have yourself, which is all anyone ultimately has. I recommended this book to someone else here but Viktor Frankl’s “man’s search for meaning’ might be useful to you. I know it sounds tedious but trying to view life’s downs as an opportunity to grow and become stronger might make it possible to change your perspective to a more positive one. Really a positive mental attitude is vital at these times as you obviously know. I had cancer last year and staying positive really pulled me through it.

I hope you find your way – your heart is not destroyed, it’s just a but bruised.

Lucy