This is a good starting place for abyssal gila fit for lower tiers:
Don’t run dark abyss, unless you got the right ship/fit. For higher tiers for gila requires a lot of investment and acknowledgment of risks. This guide is a long read, but worthwhile:
And here is Cerberus fit within same guide:
Also keep in mind if you haven’t run Abyss yet, it can be rewarding and fun, however, not only do you face risks within the abyss, and optional PvP, but there is also the small chance that running blingy fits you might exit the abyss staring down the barrels of some 1400mm arties. As always, “fly what you can afford to lose”.