Don't train learning to V, it's worthless.
Analytical Mind -lvl 2
Instant Recall -lvl 2
Iron Will -lvl 2
Learning -lvl 3
Get those to IV
Train Drones to 3 or 4, 5 by the time you are comfortable in cruisers, train drone navigation/durability/scout drone operation/combat drone operation to III or IV. Elec/Eng to IV, Gunnery to IV
Hull upgrades -lvl 1
Mechanic -lvl 1
Repair system -lvl 1
to 3 or 4, whatever is less than 2 days or so to train. As gallente you typically rely on your drone and armor tanking skills. Before you hop into a cruiser, you'll want hull upgrades to IV so you can fit hardeners.
Get your gunnery skills up to III as you feel comfortable. I would also do this before you get in a cruiser. You may want to add a destroyer if you feel you can afford it (typically run 1 million for a catalyst).
Some other skills that might help are:
Surgical Strike, High Speed Maneuvering (for MWD, not really that useful for missions), Afterburner to III (4 for High speed maneuvering), Fuel Conservation, Acceleration Control.
For grinding missions, train Social to 3 and Connections to 3 to get a huge boost in the rate at which you gain faction. I would wait until you're ready to jump in a cruiser, but it can bump you from L1's into L2's really easily.
Signature Analysis, Targeting, long range targetting will allow you to target faster and at longer range as well as have more targets. Energy systems operation, energy management, energy grid upgrades, and electronics upgrades might be needed for various fitting related modules.
Also, you may need to add some basic missile skills so you can use rockets or standard launchers with a tristans split hard points.