Yes, you are too young.

Steroids in a way amplify what is happening naturally. So if you're not getting any results without steroids all you're going do is screw up your natural testosterone and then you'll regret it for the rest of your life.

As said before get your diet right. Sometimes even though we feel like we're constantly eating its not enough. Especially with clean foods. I thought is was doing good until progress stalled then logged my diet and posted it here. I wasn't eating near enough even for weight loss. The guys gave advice and I added a few more carbs and doubled my protein intake and the scale started dropping again. It's the same for weight gain post up your diet and let the guys give advice. Post your workout too.

I know exactly what you're going through man. I was a little bit younger than you when I first joined the military. 6 ft 1 150 lb soaking wet. I thought I could never gain weight I'd always been really "twiggy". I ate like a maniac in basic training and gained 25 lb. I mean I put chocolate powder and mixed nuts into yogurt cups on the instruction of one of my drill sergeants. Who is also a very tall skinny guy. So it's just food food food my dude. Secondly, coming from this guy who has a spinal injury you need ALWAYS remain mindful of that injury. You will get arthritis and it will hurt in older age. Jumping on steroids right now would be a huge mistake. Not only because of your young age but the risk of injuring your spine is tremendous on the juice.

You're aren't getting enough food. No amount of gear adds pounds if you don't increase the intake. Get proper rest as well. If all is on point you should grow just fine without gear. Because the brain doesn't fully develop until around the age of 25. I'd stay away from PEDS. You could be missing out on your bodies natural functions.

You need to food to grow. AAS don't make up for that.
https://www.eroids.com/forums/training-nutrition-diet/weight-gain/the-ha...

Either your Diet or Training is very off, 145lb's at 6ft is extremely light even for someone who has never lifted weights. You should write down how your training sessions look with reps and sets, together what you eat in a typical day to get some better advice. Taking steroids at this moment in time would be like strapping a Jet engine to a push bike.

yes

All you really need to do is eat……A LOT! Good stuff, not shit. Try to have five meals per day, and eat a lot of pasta. Only do this if you’re going to stay committed, otherwise you’ll just get chubby

Problem isn't your age so much as the fact you're a walking skeleton at 6'0. Most people say wait until 25, but at the VERY least, wait until your diet and training are both completely dialed. You need food, not gear.

do yourself a favor, postpone Anabolics 3 or 4 years, eat a lot and train consistently. You don't have to get PEDs out of your head completely, just spend extra time reading about them, studying what would suit you the most. After six years of natural training and great diet, you should be ready to your first Testosterone only cycle, that'l give you great results.