Tourist visa refused: it will affect my future applying?

[aneg07]

Hi,
in july i wanted to spend my holidays in London for few days. So i applied on my own for a UK tourist visa and... i got rejected.
So i had to change my plan and i went abroad in a different country to spend my holiday.
Now i'd like to go In london to see Christmas time and the end of the year and i am thinking if i should apply by myself this time or if i should book the journey throught a good travel agent.
By the way, my first refusal will affect the next application? I mean, I will got another refusal 100% because of my first one?

Thanks a lot,

[vinny]

Why were you rejected? You must address and refute the reasons for the previous refusal.

See also Guidance - Visitors (INF 2) and Visit entry requirements.

Traveling via a travel agent may help you to satisfy the requirements better.