HELP.! Can L/P actually be done successfully.??

YES It can be done, and no you dont have to live in the truck and eat #### sandwiches.
I have seen countless amount of drivers at my company both succeed and fail.
There is no majic formula.
You have to read and understand your contract.
You have to no your fixed costs and schedule.
You have to no your variable costs.
You have to have a fuel purchase strategy and STICK to it.
You have to trip plan your load before accepting if possible. But certainly before you release your brakes.
Dont accept every load just to be a team player. But also dont be a pain in the balls to your dispatcher and planner