So lovely to hear from you.
Sounds like we have a similar background. You are born an engineer. I sincerely believe that. It calls to you. You either have it, or you don't. And if you have made it to your second year, you are almost there! The first two years of undergrad engineering are like boot camp. It is not for the faint of heart or mind.
You mention you have horrible study skills. Are you a procrastinator? Do you doubt yourself? Then you have classic engineering symptoms ;)
One of the most important things you can do is focus! Women are famous at multitasking. Engineering requires multitasking with focus. That means no phone calls, no emails, no personal problems, no money problems. Focus on the problem at hand. Otherwise your engineering brain will travel in multiple directions and spin wheels instead of moving forward.
Do not listen to anyone but your heart. Again, you are born an engineer. You have made it this far. First rule of Structural Engineering: Have a STRONG foundation. Do not let any one or thing dissuade you.
My four year old daughter only knows her mommy to be an "engineer." Once, we were watching "Dexter's Laboratory" and I tried to explain that Dexter was an "engineer." My four year old said, "boys are not engineers. Only girls are engineers." That's all she knows about engineering. Perspective is everything.
Hang in there...I am here to help and support you.