I see you and your evil-temptation of DIY!
When it comes to DIY projects it's hard enough to finish those 1000 every day projects you've pinned and never completed and/or started let alone try to DIY your own wedding.
Although it might SEEM like a good idea to try to plan or DIY parts on your own, it can end up not only costing a lot but also putting a whole lot of unwarranted stress on you and your wallet.
In theory, yeah, it sounds like a good idea to DIY those centerpieces. Until you realize that you have to make fifteen of them and you have never actually made paper flowers before and cutting fabric doesn't always work out exactly like the pictures tell you they do.
And ok, it would be SUPER cute if all your favors had labels that you made and printed out and attached to those jars of jam you made yourself...until you are three in and you realize you have 147 more to go....
And yeah, sure it SAYS you can make that with every day items but once you realize you have to buy all those items lying around your house you've already spent more on the pieces of the thing you'll now have to assemble than you would have just letting a professional do it.
Now, I'm not here to discourage all you crafty brides and grooms out there. DIYing aspects of your big day can add tons of sentimental value to parts of your wedding and make it truly unique.
One of the best things about hiring a wedding planner is they know where that line is between DIYING and DYING. They'll be able to tell you where you can cut corners and where you need to trust a professional while making sure your wedding looks like your Pinterest board and doesn't end up on a Pinterest Fail Tumblr page. It will save you time, money, and your sanity.
Save yourself the trouble and know when to set the hot glue gun down.