(...)I feel like im not good enough to do medicine. I don't have a good memory, im not a good leader, etc (the list goes on). Some things can be improved upon but i don't know if i'll be successful or even last in the field, especially with this mindset. The point is, there are many reasons why i shoudn't persue a MD.
It sort of feels like you're being particularly harsh on yourself there. I'm not sure where you're getting the idea that you have to be a good leader (is it from YouTubing and a US-centric influence? As mentioned before the US is not reflective of how things work in Aus/NZ), and I'm not sure what you mean by you "don't have a good memory" - you don't need photographic (eidetic) memory for med school, if that's what you mean. Beyond that, the need for repeated exposure to achieve good understanding and recall is sort of how studying and revising works.
I've been youtubing like crazy about this and many people say to gain as much experience as possible to see whether you gravitate to particular roles however most places aren't taking people in to shadow/volunteer because of covid.
I think even if you did all that, it can still be hard to appreciate the actual experience in those roles. Shadowing someone has limitations (clinicians will filter out sensitive/difficult cases, which often aren't suitable/appropriate for a shadow - or even med students - to see) and it can be hard to appreciate, from spectating, the experience of the clinician (work/life balance, fatigue, and other aspects external to work - personal/family life stressors etc.) As for being a volunteer, depending on what role you are volunteering in, it's not always a "get inside experience in a clinical environment" deal - that might be what you want out of it, but what your organisation wants out of you is for you to do the work you signed up to volunteer for, whether that be organising events, helping people find their way around the hospital, or even standing with a bucket collecting donations.
Watching someone drive a train, is a different experience to driving the train yourself. (And driving a train yourself at 2am on your 12th consecutive day of work, is a different experience still.)
Nursing has a vital role but i can't imagine myself doing anything other than a MD.
I'm gonna echo Crow's post above and say that you should at least think about it - what would you like to do in life,
other than medicine? It can seem at a younger age, that to have the audacity to think about an alternative path is to show a disastrous lack of commitment/determination to the cause; but the reality is, whatever you do in life, you should always have a backup plan.
In the same way that pilots have alternative airports planned and are always prepared for a diversion or emergency landing, when embarking on a journey towards medicine you should have backup options. Don't paint yourself into a corner by thinking that you can't do (or think about) anything else - that'll only set you up for misery, in the event things don't go your way.
Also as Crow pointed out: what you do now is
not an irreversible binary decision between medicine and something else. There are avenues for trying for medicine again later on, if you end up doing something else but still wanted to give it a shot. Alternatively, you might find yourself happy and content doing something else, and not bother trying for medicine later. I think it's easy to get tunnel vision at a younger age, and get fixated on a single career goal, losing sight of all the other possibilities.
Life is not a straight line towards a goal, but a journey along a twisting, winding, and branching path through the forest; it's not always necessary or desirable to go directly towards your original destination, and sometimes you might go down a branch and find something better entirely.
It can be hard to imagine yourself
not doing medicine; and even harder to imagine yourself doing something you might've previously considered "boring" or "mundane", with life outside work (family, hobbies, travel etc) being the more exciting/rewarding aspects of life, funded by the paycheck you earn from work. Keep that "work to live" vision in mind - medicine or not, that is a common and valid way of life, which you might look upon more fondly as you get older.