small time gambler

hi dont bet on the horses to often just a couple of bets at the chelt. festival (which i didnt get 1 winner at this yea ) and the national was looking to spend about £30.00 but spread my bets over a few horses

tidal bay  2.50 ew
what a friend 5win
the midnight club 5win
chief dan george 2.50ew
bluesea cracker 2.50ew
cant buy time 1.50ew
royal rosa 1ew

is this a stupid way of betting? is there a better way a could place the bets?