[Closed] I'm almost at the end of my tether here, sorry this is a bit long

I got my dog in October 2006. She was about 1 year old then, she's a Doberman. She hadn't had any training or been socialised to anything it seemed. At time time I had a boyfriend and (even though he had grave reservations (and he was right)) he said if I really wanted the dog he would help me look after her.

She used to p155 when she was frightened (most of the time) plus she has urinary incontinence (she has medicine 3x per day to control this).

Despite numerous trainers, training, training aids she still pulls on the lead. Every single walk is a battle of wills. My back is totally f*ck*d, I have constant leg pain, my right arm is almost useless now, hurts even now while typing this. My knees ache. I can't let her off the lead much because she chases runners and cyclists. She goes mental in the car if she sees a cyclist or motorbike and has made scratches on the upholstery. She goes mental in the caravan if anyone walks past.

I used to work 3 days per week, now it's 4, due to wage freeze, so I am constantly wracked with guilt at leaving her. I get up at 5.30 to walk her for an hour before work, and walk another hour when I get in (at 7.30pm). I have no social life because I feel I leave the dog enough with work anyway, feel guilty every time I go on my bike, because I am leaving her again.

She has come on a lot in the time I've had her, she's more confident but she just will not do what she's told (unless I shout and scream like an old fishwife! - stressful)

I love my dog - she's all I've got really, and without her I'd be alone but I'm totally exhausted mentally and physically with the struggle. Crying now, I really don't know what to do.