Nothing, not titanium, steel or gold will withstand a nib first fall. My suggestion is to stay with a beater pen till you develope better habits. A metro is a good pen to cut your teeth on. A safari has easy to find replacement but costs as much as a metro.
What he/she said.
There's a lot of durable fountain pen bodies out there (think Karas Kustoms). The problem is the nib. As defined by how it has to work, a nib has to be movable based on the light pressure you place on to the paper. Therefore, if you are a butterfingers, you're gonna drop a bunch and break every nib that hits the ground.
I'll go one step below what Inkling13 said and get a Jinhao. Heck, on ebay, you can get a pack of Jinhao's for less than $10. Mix and match. Get a bunch of different styles. None are original and all are knockoffs of other designs. But their low cost will be worth it until, as Inkling13 says, you develop better habits. There is a dual benefit there for you as well: since they're knockoffs of other designs, you can see which ones are better suited to better handling for you and once you are confident in your ability to hold one, you can invest in the real deal and get a better writing pen.
If you want to go a step in between a Pilot Metro and a Jinhao, check out Fountain Pen Revolution. But really, start with Jinhao and work your way up. The nib won't be great, but that's kind of the point until you can keep it in good condition for a bit.
Don't give up. Learning how to take care of the pen will be a skill that will translate into taking care of other things in your life. It is a worthwhile skill to learn.