Dilemma with spending, Help?!

I have this huge dilemma with spending money and I can t decide.

Here s my situation:

I have an acer aspire laptop that I got in the early year 2013. It s a fairly good computer for school and does its job fairly well, it could even handle high graphic games that I downloaded and play a while back.

My current cellphone is a samsung s4 mini, its good too given the fact that I don t use my phone much, only for social media, photos and reading.

SO, I m currently in my senior year and have saved up money (whatever I could scavenge, since I don t get allowance and I don t part-time, just summer babysitting and Christmas money [so this money is VERY precious to me]) to buy myself something after I graduate (or before).

I m contemplating between buying myself a Macbook (13) to help me with my studies in university or buying myself an iphone (the latest 6s) and a small tablet and just asking my dad s friend to clean my acer laptop for a faster performance.

Do you think that buying a Macbook would be worth it considering I have a fairly decent laptop already and just buy a phone and a small tablet for lighter pieces of tech to help with my studies? Or since I don t use my phone as much, I could just buy get Macbook for better quality?

I'll appreciate all appropriate answers, Thank You:)

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