Is my training routine sufficient?

[Phil-SC]

Hey guys, I'm a 15 year old male who's looking to join a boxing gym in the near future to compete. I was just wondering if the routine I recently started was a good building block for what I will be doing, it consists of:
- Alternating between sprinting and jogging for two miles
- A shadow boxing workout that incorporates sit ups, push ups and burpees that lasts the time of a round (3 sets)
- Then I rotate to weight workouts the next day, and back, etc.

[Rockin']

Get to the gym as soon as you can if it's what you're going to do. You can 'prepare' all that you'd like but it will help little once you are actually in there throwing fists with somebody. Best way to get in to shape for boxing is to box, and then box some more.......... Rockin'

[Suckmedry]

Agreeing with Rockin'. Just get down to the boxing gym and start learning

[jas]

Don't overdo it

Will cause injuries

[- Ram Raid -]

You're probably a little apprehensive about stepping into the gym so you want to be in the kind of shape that will make you feel more confident in doing so. That's only natural. It can be quite daunting taking that first step when you don't fully know what to expect.

All you'll be doing initially is getting in shape and some basic drills. It's a lot more fun doing that surrounded by other people who are doing the same thing and can offer you guidance.

Find out what gyms are in your local area and go and check them out. They'll be used to having newcomers so you'll just quietly slip in with what ever they're doing that session. It's a lot more fun than working out on your own.

[Showtime..]

Don't overdo it

Will cause injuries

Don't pay attention to injuries IMO. If something begins to hurt, just continue on your regular routine until you get back to the exercise that caused the injury. Take a week off from exercising the injured area but don't stop completely.

I had horrible wrist tendonitis for about 3 weeks, but I took this last week off from doing any Biceps and now I'm probably back at 70-80%, good enough to start again.

[Spray_resistant]

Like Rockin says, go to the gym because you can't really see the technical errors you are making while shadow boxing. A trainer will point to mistakes you are making keeping you conscious of them, work with you on your technique, and you can apply what you are learning and learn more by sparring more skilled experienced fighters.