HI Brooks,
The lifting is great but running and swimming are way better. You will need to be putting in serious hours a day doing these 2 things. Have you considered coming out to our KOKORO camp. The cost is a drop in the bucket compared to enlisting and potentially not making it through BUDs. We have close to 100% success rate of our campers making it to Buds after completion of our camp. This camp also shines a magnifying glass on the holes in your training.
Let me know what your cardio and endurance picture looks like. We require that you are able to run a 1/2 Marathon in under 2 hours for this camp. Can you do that? For a SEAL Candidate you should be closer to 1:45.
I hope this helps.
Let me know how I can help.
Coach Mel