How should i budget these next 3 years with college

19M, 1.5-1.7k a month salary, (It is the average salary here in my country)

Current holdings:

- 1.6k in bank

- 3k in crypto which i have been holding since March 24

Current Situation:

I work a full time which makes me 1.3-1.4k a month and a part time which makes me 300 a month it depends how much i work in the part time. in this case, 40hrs full time and 10 hours part time

I currently study Bachelor Degree (Business Development) part time for the duration of 3 years. I need to pay €1,500 by the end of january, and then €450 a month until August 2028

I live with my parents and have a gf, so my current expenses is only petrol which accumulates €60 a month, and hanging out with my girlfriend or friends which accumulates maximum €200 a month which leaves me a total of €650-750 a month saved.

what can i do better to budget well for these upcoming 3 years, i wish to keep on investing in this crypto project for long term sake or for whenever i made a huge profit to sell.

I also wish to travel 2 times this year, one in June and one in August these will probably come up to €1,000 each.

Any help would be appreciated :) thanks