Take apart the cabinet, lay out on working surface on top of old towels. READ the can of Howard Restore a Finish, buy the appropriate steel wool size they recommend. Buy two packages. Have q-tips, old rags, rubber gloves and well ventilated area. Take breaks.
Pour Howards onto steel wool pad, rub in direction of grain. Go over a small area, this will not be easy...this will take a lot of work, you will need to do this more than once.
Work all the parts, clean as directions state. I waited to do the Feed and Wax the next day.
YOU WILL be quite pleased with yourself once it's done!! This is the objective =)
Nothing in life that gives satisfaction comes easy.