swvabaseball,
You are on a High School team. You need to work FOR and WITH your Coach. He's now the boss.
It does not matter that the YMCA has "nicer" equipment. You need the CORRECT equipment. What DOES matter, is that you get stronger & better for your Team, Coach, & you, in that order.
Take a look at your baseball workout compared to the football workout. Talk to your Coach to see if it needs to be modified. Ultimately, you want a strong core, back, & legs for power up in pitching. Arms, long & loose muscles.
See our hsbaseballweb link for good advise on Strenghth & Conditioning:
http://hsbaseballweb.com/eve/f...s/a/frm/f/2976083255
My son was a pitcher in HS & now 4th yr college. He used a Yankees workout, that was approved by his Coach. Modified lifting, lots of leg lifts, band work, Jobe exercises, Yoga, running. All under the watchful eyes of his coaches.
You absolutely DO need someone spotting you while lifting. Better to be safe than sorry. Accidents happen.
"Doing your own thing" could send a message to Coach that you are "un-coachable". It's in your best interest to be a teamplayer. Talk to him. Approach him with an attitude of "All for one, One for all". He will respect you for it.
Best of luck.