Gallente rats are weak to Kinetic/Thermal, so using hybrids instead of lasers may be preferrable.
As Gerard mentioned, stick to 1 type of tank. Armor may be the most suitable, as it’s easier to keep relatively cap stable and a bit less reliant on expensive modules.
You’ve gone with pulse lasers, which are short ranged lasers. Simulating various fits, I can’t make a pulse laser praxis fit that can tank well enough for the kind of sites you’d want without completely ruining the damage output and/or capacitor.
I’d recommend changing your approach to a sniping fit that’s much less reliant on skills and isk to succeed.
I’d recommend something similar to this fit, go T2 on everything you have skills for. When possible, for serpentis, swap the beam lasers to 425mm railguns (along with the heat sinks and range rigs for hybrid equivalents).
Navy ammo is worth the money. Carry a variety of ranges.
The micro jump drive is very useful, but if you can’t use it careful use of bookmarks can work as an alternative.
[Praxis, Praxis fit]
Mark I Compact Power Diagnostic System
Mark I Compact Power Diagnostic System
Damage Control II
Nanofiber Internal Structure II
AE-K Compact Drone Damage Amplifier
Extruded Compact Heat Sink
Extruded Compact Heat Sink
100MN Monopropellant Enduring Afterburner
F-12 Enduring Tracking Computer, Optimal Range Script
F-12 Enduring Tracking Computer, Optimal Range Script
Eutectic Compact Cap Recharger
Alumel-Wired Enduring Sensor Booster
Alumel-Wired Enduring Sensor Booster, Targeting Range Script
Large Micro Jump Drive
Tachyon Modulated Energy Beam I, Imperial Navy Ultraviolet L
Tachyon Modulated Energy Beam I, Imperial Navy Ultraviolet L
Tachyon Modulated Energy Beam I, Imperial Navy Ultraviolet L
Tachyon Modulated Energy Beam I, Imperial Navy Ultraviolet L
Tachyon Modulated Energy Beam I, Imperial Navy Ultraviolet L
Tachyon Modulated Energy Beam I, Imperial Navy Ultraviolet L
[Empty High slot]
Large Energy Locus Coordinator I
Large Energy Locus Coordinator I
Large Ancillary Current Router I
Caldari Navy Warden x4