YABU. You clearly have no awareness of your own safety, the law or other people's safety either. In all honesty, you should wise up or walk.
After my husband was knocked off his bike TWICE in two months earlier this year, I echo what other people say about using the road like other road users and move out into the road. You have to be a more aggressive cyclist for your own safety. On both occasions the driver has been at fault - but its changed the way he cycles in order to make doubly sure he is seen by other road users.
Cars hate it but it makes a HUGE difference to your safety and how aware they are of you. If you are trying to pass cars on the left hand side you are putting yourself in enormous risk. Drivers won't necessarily see you - they are used to checking their right hand side rather than left and have a bigger blind spot on the left. Undertaking on the left-hand side, in particular with lorries, is the biggest cause of cyclist fatalities. You are being ridiculously moronic to even attempt it. If you must overtake in heavy traffic, going on the outside of cars is far safer simply because you have greater visibility but be aware of blind spots. If you are in traffic and are at lights, take advantage of cyclist safety areas in front of the stop line for other traffic. They help make sure you are seen.
Cycle lanes are a dreadful invention. They have been show to actually end up causing more accidents. They force cyclist into the worse space in the road, for visibility and it causes drivers to take the attitude that they should stay in the gutter on all roads. Not to mention that if you are cycling in the gutter, its more uneven and you are more likely to be thrown into traffic by a bump in the road than if you use the same tarmac as other road users. They make other road users take the attitude that you have less rights on the road than you.
As for cycling on the pavement. Its illegal to do so if you are over 18. You are putting pedestrians at risk. If you hit a pedestrian they have every right to sue you. Cyclists are starting to get cycle insurance as its a rising problem... people are starting to take action against cyclists.
If you aren't prepared to cycle like a car and put up with abuse from moronic drivers who think they own the road, then don't cycle. Best way to avoid the abuse? Buy a cycle-helmet cam. There are cheap ones for about £30 out there (though most are £200 - thing is you don't need it to actually work to make a difference). You'd be amazed at how much extra road space and respect they earn you from cars.