At the current status of lightning (experimental) you cannot expect to make money with your lightning node
because lightning is rarely used for real world transactions (the only useful application for me so far is bitrefill)
but mainly for testing (playing roulette for a few satoshis).

Indeed recently I have downgraded the fee I require for relaying transactions via my lightning node to zero in
order to see if a moderate size lightning node will relay any transactions at all. (There are some).

I recognized that currently there is a relatively small number of nodes with a large number of open channels
(> 50 or > 100 up to 1000) which probably do most of the routing.  Of course this is not in the spirit of
decentralization.
  
In order to support decentralization I have now stopped to use the 'autopilot' of lnd to open channels to other
nodes but use a script of my own which only accepts nodes which have less than 50 open channels.
Lets see there that will lead to.