Ghost scepter is your friend.. Most likely he will charge, pop scepter soon as you can, this will most likely give you time to run / allies time to TP support.
If they dont support he will most likely ulti you, if he does ulti soon as u pop scepter just take the stun and TP out.
If he holds ulti just kite away, if your support stun, if your a carry / ganker most likely you should also have farm so shud be able to survive long enough for any support to arrive or have an escape mechanism.
If your a tank then its really easy just get blade mail. Pop it if he carries on attacking you get a free kill, if he backs off just retreat to safety.

Sb should never have outfarmed you, he is not the best laner, worst case he will be top with 2 supports but he is not a late game carry so even if they gain some ground mid game you bot lane hard carry should easily be able to deal with SB late game.

Bara is not as effective in pro games as he is not a hard carry, and due to the far superior map awareness and warding its very easy for teams to know / see a charge and react to tp to tower nearby and turn a bara kill into a bara death, he doesnt fit into a wood/solomid/bot lane hero so only role he could fill is hard carry and he is not capable of killing mutliple heros in a team fight which would result in the other team just sticking if bara did manage to snowball and just winning team fights and most likely ultimately the game...