I often encounter the same type of responses from patients, other nurses and doctors. I wouldn't let it discourage you. It's all a matter of perception.
After 5 years as an LPN in sub-acute rehab, I feel confident in my assessment and hands on skills. I've ran plenty of codes and saved more people than I can count.
Do we have a loaded crash cart and a code team like the ED? No. But if I stabilize until a medic arrives. I've done my job.
With a 1:25 ratio of postop Pts and varying degrees sub-acuity, you have to be quick on draw in prioritizing and assessing patients.
Patient care techs in the hospital are often the ones to do caths, IVs, and lots of hands on. My state allows LPN to do IVs with the exception of blood products. As a former medic, I don't have any problems getting a line in a Pt.
I also rounded with the wound care doctor bi-weekly. Most hospitals have a wound care RN. You can learn a great deal one on one with a wound care doc. She was actually an OB/GYN prior to moving into wound care.
Personally, I have a problem with the pay disparity in nursing. You're rarely paid by what you do. But instead by what you 'know'. I have an associates in Allied Health Sciences with a focus on emergency management. But without an ADN or BSN, it is pretty worthless. That's why I'm in an LPN to RN BSN program.
Perception is key. If you're happy with your job. Then you're already winning the battle. I know RNs who've quit nursing because of hospital politics, regulatory policies, and unsafe working conditions.