Only you will know!
My first wedding, I was asked by my wife's neice to shoot her wedding. I thought I did a pretty good job with excuses as to why I shouldn't shoot it but she really wanted me to, so I did!
My experience! I missed the entire wedding ... in that, for the entire day, the only part I enjoyed was when I sat down and had dinner with my wife and family and even then, I was totally focused on what the Bride, Groom and wedding party were doing.
It was a GREAT experience being the photographer at a wedding in that ALL else was not even a part of the day and I was TOTALLY focused on getting the best shots of any and all that was going on. Even got shots of my son and daughter-in-law dancing and don't even remember shooting them.
My wife recently told me that I am not allowed to shoot any more family or friends weddings because her day kinda sucked being there alone.
I REALLY like doing weddings but you really need to be committed to your "job" at hand. You are NOT a guest, you are part of the working crew of the wedding ... same as the caterer, band or anyone else involved with providing their services for the event.
I was in my own world that day as well as the other weddings I have done. So far, I guess I have done alright! Everyone likes what I have shot ... My wifes neice's house looks like a photo gallery of my wedding photos of her wedding!
EDIT: Be forewarned ... If you do a wedding, KNOW what you are in for! Check out the church or whereever the ceremony is held,talk with the minister of the persone performing the ceremony. Check out the reception hall and talk to the people running the reception well ahead of time. I was a second shooter for a wedding my nephew was shooting. He did not check ahead and when we arrived at the church, the Priest told us, minutes before the bride walked down the aisle, "NO flash photos in the church!". My nephew went into panic mode. I calmed him down, got out my faster lenses and got the shots inside the pretty dark church. He's out of the wedding photo stuff now!