This is my team so far.

Part 6.

I continue my nuzlocke by exploring Saffron City and I receive a Hitmonchan and afterwards I take on Team Rocket at the Silph Co but I was unprepared and I began to lose alot of pokemon that where underlevelled. First I lost Gyarados and Geodude but the worst part was losing Hitmonchan after it learned all of the elemental punches. I would then lose Ghastly, Ekans, Venonat and Krabby. Then against my own rival, I lost Golbat to his Pidgeot but that would be the last pokemon I losed this part. This is the most I've lost. Luckily enough I received a Lapras and I was able to beat Giovanni, Hypno dealt with Nidorino and Nidoqueen while Venusaur dealt with Kangaskhan and Rhyhorn. Then I would take on two gym leaders that I had been skipping so both of them would be underlevelled, Lt Surge and Erika. Venusaur dealt with Voltorb, Pikachu and Raichu while Hypno dealt with Victreebel, Venusaur dealt with Tangela and Hypno dealt with Vileplume. Can I still beat my nuzlocke?

Any advice for Koga and Sabrina?